Category Archives: Inheritance

Leave No Stone Unturned, No Ancestor Behind: 10 Easy Steps to Capture DNA Clues

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There’s a lot, a whole lot that DNA testing can tell you. Not just your own tests, but the genetic information carried by your relatives that you do not.

Recently, I’ve been reviewing my brick walls, which led me to realize there are several ancestors who are missing their mitochondrial DNA and/or Y-DNA  results. I need these to learn more about my ancestors that can’t be revealed any other way – and to break down those pesky brick walls.

I’ve solved two mysteries recently, one thanks to a Big Y-700 test, and a second very unexpectedly thanks to mitochondrial DNA – both thanks to cousins who tested. These revelations were very encouraging, especially since there’s no way other than DNA for me to break through these brick walls. The mitochondrial test had been sitting there, waiting for what seemed like forever until just the right other person tested.

I am in the process of unlocking several brick-walled ancestors by providing testing scholarships to people who are appropriately descended from known ancestors in those lines.

Don’t leave information on the table. If I were to tell you there even MIGHT be a book available about your family, you’d overturn Heaven and Earth to find it – but you don’t need to do that. All you need to do is order DNA tests for cousins.

All cousins can provide useful autosomal DNA results, but you do need to find appropriate cousins for Y-DNA and mitochondrial DNA testing.

I’m sharing the steps for how I accomplish this! You’ll be amazed at what’s out there – and someone may already have tested!

Take Advantage of the Holidays

I’m sharing NOW because it’s the holidays and you’re likely to gather with people you don’t see any other time – and because the best sale of the year for both Y-DNA and mitochondrial DNA lasts from now through the end of the year.

These two factors combined mean strike while the iron is hot.

Prices for new tests and bundles are at an all-time low.

If you or your relatives have already taken a lower-level test, now is the time to upgrade to either the Big Y-700 or the mtFull Sequence test.

Step 1 – Test Yourself and Your Known Family

If you’re a male, order both the Big Y-700 test and mitochondrial DNA tests.

Be sure to click on “See More” for more useful tools.

When you receive your results, be sure to click on all of the tabs in your results, and do the same by clicking through to Discover from your account. Discover has 13 more goodies for you to help with your genealogy.

Both your personal page and Discover are essentially chapters of your own personal book about your DNA results. 25 very interesting chapters, to be precise, that are uniquely you.

I’ve written about understanding Y-DNA results here, and mitochondrial results here. My book, Complete Guide to FamilyTreeDNA, covers both along with Discover.

Discover provides robust information for Y-DNA haplogroups. If you’ve taken a Big Y-700 test, you’ll want to click through from your page to receive additional, personalized and more robust information than is available through the free public Discover tool. That said, the public version of Discover is an amazing tool for everyone.

After the new Mitotree is released for mitochondrial DNA, mitochondrial haplogroups will be available in Discover too.

I can’t even begin to stress how important these tools are – in particular the Time Tree, the Group Time Tree for members of group projects, and the Match Time Tree for your own matches.

Who Can Test For What?

Once you’ve tested yourself, you will want to take a look in your pedigree chart at branches further up your tree to see who can be tested to represent specific ancestors.

Let’s begin with my father’s side.

A mother contributes her mitochondrial DNA to all of her children, so your father carries the mitochondrial DNA of his mother.

If you’re a female, and your father is available to test, you’ll want to test BOTH his mitochondrial DNA and Y-DNA, because there’s no way for you to obtain that information from your own test. Females don’t have a Y chromosome, and men don’t pass on their mitochondrial DNA.

If you’re a male, you can test your own mitochondrial DNA and Y-DNA, but you’ll need to test your father’s mitochondrial DNA to obtain his mother’s. You might still want to test your father’s Y-DNA, however, because you may discover a personal family haplogroup. How cool is that??!! Your own tiny branch on the tree of mankind!

Your father’s mitochondrial DNA provides you with mitochondrial matches and haplogroup information for your paternal grandmother – in this case, Ollie Bolton.

If your father and his siblings can’t test, then all of the children of your paternal aunts carry your paternal grandmother’s mitochondrial DNA.

If they have no children or they can’t test, then the children of Ollie Bolton’s mother, Margaret Claxton/Clarkson all carry her mitochondrial DNA, and the children of Ollie’s sisters continue the line of descent through all daughters to the current generation.

The male children of Joseph “Dode” Bolton and Margaret Claxton carry his Y-DNA. Fortunately, that’s not one of our missing haplogroups.

Yes, you may have to climb up your tree and climb down various branches to find a testing candidate.

One of the reasons I’m using this example is because, while I have a high-level haplogroup for my grandmother, Ollie Bolton, we need a full sequence tester – and I’m offering a mitochondrial DNA testing scholarship for anyone descending from Margaret Claxton (or her direct female ancestors) through all females to the current generation, which can be male.

Ok, now let’s switch to the maternal side of your tree.

On the other side of your tree, your maternal grandfather or your mother’s brothers will provide the Y-DNA of your mother’s father’s line. Your mother’s uncles or their sons will provide your grandfather’s Y-DNA line, too. In this case, that’s John Whitney Ferverda, who carries the Y-DNA of his father, Hiram Bauke Ferverda/Ferwerda.

Your maternal grandfather or his siblings will provide the mitochondrial DNA of their mother, Evaline Louise Miller.

If they are deceased or can’t test, for mitochondrial DNA, look to the children of Evaline Miller’s daughters or their descendants through all females to the current generation, which can be male.

And yes, in case you’re wondering, I do need Evaline Miller’s mitochondrial line too and am offering a scholarship.

You might have noticed that I’ve been inching my way up my tree. All of my immediate relatives have passed over already, so I’m now looking for testers that I don’t know but who I’m related to.

If you’re seeing family members anytime soon, figure out if their Y-DNA, mitochondrial DNA, or autosomal DNA would be useful for your common genealogy. Take advantage of the opportunity.

Next, you’ll want to figure out which ancestors need haplogroups and locate appropriate cousins.

Step 2 – Identify Ancestors Who Need Haplogroups

Peruse your tree to determine which of your ancestors you need haplogroup information for. To make it easy, on my computer, but never in a public tree anyplace, I store the haplogroup of my ancestor as a “middle name” so I can easily see which ones I have and which ones I need. Sometimes, I have a high-level haplogroup and either need a new tester or someone to upgrade.

Sometimes, I have one tester from a line but need a second for confirmation.

In this example, I’m not missing confirmation on any Y-DNA haplogroups (although I am further upstream on different lines,) but I do need four different mitochondrial DNA lineages.

For easy reference, make a list of all of the lines you can’t confirm with two testers from different children of the same ancestor.

You just might get lucky and discover that someone has already tested!

Step 3 – Check FamilyTreeDNA Projects

Check FamilyTreeDNA Projects to see if someone has already tested to represent those ancestors on your list.

Click here for the Group Project Search. It’s located at the very bottom of the main FamilyTreeDNA page in the footer.

I’m going to use Estes as an example since I’m the volunteer administrator of that project and am very familiar with the lineages.

I’m searching for projects that include the surname Estes.

The projects displayed on the list are projects where the volunteer administrators listed Estes as a possible surname of interest. It doesn’t mean those projects will be of interest to everyone or every line with that surname, but evaluate each project listed.

You probably want the surname project, but if there’s not a surname project for your surname, try alternate spellings or consider checking other projects.

You can see at the bottom that 384 people of both sexes by the surname of Estes have tested at FamilyTreeDNA.

Now, let’s look at the Estes project. Note that not everyone with the Estes surname has joined the Estes project.

I’ve clicked on the “Estes” link which takes me to an additional information page where I can read a description and click to view the project.

For the Estes project, you do not have to join to view the results. Nor does your surname have to be Estes. All Estes descendants of any line are welcome. Everyone can benefit from the Advanced Matching within project feature to see who else you match within the project by selecting a wide range of individual and combined filters.

Click on the Project Website link shown in the search results.

If you’re searching for a male Estes ancestor, you’ll want to review the project’s Y-DNA Results and the Group Time Tree, for sure, and possibly the Map as well.

Let’s pretend I’m trying to determine if anyone has tested who descends from my ancestor, Abraham Estes, the founding Estes ancestor in Virginia who arrived in the mid-1600s.

In the Estes project, the volunteer administrator has divided the Estes male participants by sons of Abraham, the immigrant. Only three are shown here, but there are several.

Some of the participants have completed their Earliest Known Ancestor information, in the red box. Sometimes people don’t think to update these when they make breakthroughs.

If you descend from Abraham’s son, Sylvester, three men have taken the Big Y-700. That’s the test results you need.

If you descend from Abraham’s son, Abraham, no project participants have taken the Big-Y test to represent that line, although six people have tested, so that’s great news. Maybe you can offer an upgrade scholarship to one or some of those men.

In other words, to establish the haplogroup for that lineage, at least two men need to test or upgrade to the Big Y-700, preferably through two different sons of the common ancestor. A new, more defining haplogroup is often formed every two or three generations for Y-DNA.

Your genetic pedigree chart looks a lot like your genealogy pedigree chart.

Click any image to enlarge

The project Group Time Tree shows selected groups of men who have taken Big Y tests, along with their Earliest Known Ancestor, if they’ve provided the information. This is one of the reasons why the Big Y-700 is so critically important to genealogy. The time granularity is amazing and can answer the question of whether men by the same surname descend from the same common ancestor – and when.

If you’ve taken a Family Finder autosomal test at FamilyTreeDNA, or uploaded an autosomal file from another vendor, you may match one of these men or another male that descends from the Estes line if they, too, have taken an autosomal test.

This same process applies to mitochondrial DNA, but generally surname projects aren’t (as) relevant for mitochondrial DNA since the surname changes every generation. However, sometimes other projects, such as the Acadian AmerIndian Project are quite beneficial if you have Acadian ancestry, or a geographic or regional project like the French Heritage Project, or something like the American Indian Project.

Another great way to find testers is by utilizing your Family Finder test.

Step 4 – Family Finder at FamilyTreeDNA

The next step is to see if you match anyone with the surname you’re searching for by using your autosomal test results, so select your Family Finder Matches.

At FamilyTreeDNA you’ll want to search your matches by the surname you seek. This surname search lists any tester who has that surname, or anyone who has entered that surname in their surname list. Please note that this search does NOT read ancestors in your matches’ trees. You’ll still need to view trees.

Reviewing the 32 Estes Family Finder matches reveals several men, but one man with the Estes surname has already taken a Y-DNA 25-marker test, so he would be an excellent candidate to offer a Big Y-700 upgrade scholarship. If he’s not interested or doesn’t respond, there are several more men to contact.

Click on your match’s name to display the profile card, along with the Earliest Known Ancestors, both Y-DNA and mitochondrial DNA haplogroups if they have tested, and the assigned haplogroup based on their testing level.

Craft an email and offer a testing scholarship. This will help both of you. I’ll provide a sample email at the end of this article.

If you match a female with an Estes surname, her father, brother, uncle or cousin may either have already tested or be willing.

If you match someone who has a different surname, that means they have an Estes surname in their surname list and may know a potential tester. If your match has a tree, click to check.

I’ve found that matching through a company where you’ve both tested is the easiest way to encourage someone to take an additional test, but certainly, it’s not the only way.

Step 5 – WikiTree

WikiTree is a quick and easy way to see if anyone has taken a Y-DNA or mitochondrial DNA test that should reflect a particular ancestor’s Y-DNA or mitochondrial DNA.

I just googled “Moses Estes 1711-1787 WikiTree” and clicked to view.

Each ancestor includes both Y-DNA and mitochondrial DNA information, in addition to people who descend from that ancestor through only autosomal lines.

In this case, two men have provided their Y-DNA results that pertain to Moses Estes. They have tested at different levels, which is why they have different haplogroups. That doesn’t mean either is “wrong,” one is just more refined than the other. You can correlate their kit number with the Estes surname project. People often don’t update their haplogroup information at WikiTree when it’s updated at FamilyTreeDNA.

Please note that if the genealogy is wrong, either at WikiTree or individually, the haplogroup may not reflect the appropriate lineage for the ancestor. Check to be sure that there’s no conflict showing between two testers for the same ancestor. For example, the same ancestor clearly can’t have two different base haplogroups, like E and R. The Discover Compare tool can help you evaluate if two haplogroups are in the same part of the Y-DNA tree.

When possible, it’s always best to test a close family member to represent your lineage even if someone else has already tested.

Scan down the list of autosomal testers for that ancestor to see if there’s someone with the Estes surname.

WikiTree provides additional tools to find descendants.

Sign in to WikiTree. You’ll see the ID of the profile you’re viewing – in this case – Estes-167. Click the down arrow and select “Descendants.”

This view shows all descendants through five generations, but you can click on DNA Descendants to see only Y-DNA descendants, X-DNA, or mitochondrial DNA descendants for female ancestors.

You may find people who are living and have added themselves who you can contact to offer a DNA testing scholarship.

Step 6 – MyHeritage

At MyHeritage, you can also search your DNA matches by surname.

Click on “Review DNA Match” to view more detail, including locations. Look to see if you have a Theory of Family Relativity Match which suggests how you may be related. That’s golden!

There’s no Y-DNA information at MyHeritage, BUT, you can search by surname and view DNA matches that either carry that surname or have that surname in their tree as an ancestor.

I have a total of 75 “Estes” matches, and other than the kits that I manage, searching through my matches shows:

  • Two Estes men connected to the same small tree, but that’s OK, I’m a genealogist!

  • One Estes male match with a Theory of Family Relativity. My lucky day!

You can contact your match easily through the MyHeritage messaging system and offer a DNA testing scholarship at FamilyTreeDNA. You may also want to share your email address.

MyHeritage customers may not be familiar with Y-DNA or mitochondrial DNA testing, so you might want to share this article about the 4 Kinds of DNA for Genealogy.

MyHeritage testers can also upload their DNA file to FamilyTreeDNA for free to receive autosomal matches plus a complimentary mid-range Y-DNA haplogroup. This free haplogroup is not even close to the detailed resolution of a Big Y-700 test, but it’s something, and it may well be an enticing first step for people who are only familiar with autosomal testing.

Step 7 – At Ancestry

At Ancestry, select DNA Matches and then search by surname.

You can search by the surname of the tester, which is very useful, or by people who have Estes in their trees.

I started with the surname Estes, because it’s the most straightforward and I may find a perfect male candidate for Y-DNA. If someone’s “screen name” doesn’t show as Estes, they won’t appear in the results of this search. In other words, if your Ancestry screen name is “robertaestes” you won’t show in this search, but “Roberta Estes” will.

For mitochondrial DNA, you would want to search for the surname in your matches’ trees. Unfortunately, you cannot search for the specific ancestor in someone’s tree, at least not directly.

Of my 19 Estes surname matches, ten are males, and of them:

  • Three have unlinked trees
  • Three have very small linked trees, but I can work on extending those if need be
  • Three have public linked trees AND a common ancestor, which means ThruLines

I can review which ancestor we share by clicking on my match’s name

The Estes side of this man’s tree has only one person and is marked “private,” but Ancestry has suggested common ancestors based on other people’s trees. (Yes, I know trees are dicey, but bear with me.)

It’s also worth mentioning that you can be related through multiple lines. I share surnames from Acadian lines with this man, but that really doesn’t matter here because I’m only using autosomal matching to find an Estes male.

Click on “View Relationship” to see our common Estes ancestor’s ThruLine.

The ThruLine shows how Ancestry thinks we’re related on the Estes line.

I can also click on “View ThruLines” to see all Thrulines for John R. Estes, which shows four additional males, some of which did NOT appear in the Estes surname search, and some of which don’t appear further up the tree. In other words, check all Estes ThruLine ancestor generations.

Don’t rely solely on Ancestry’s surname search.

Go directly to your ThruLines on the DNA menu.

Ancestry only reaches back seven generations, which for me is Moses Estes and Luremia Combs. Moses has 95 matches, but he has been given some incorrect children. Again, for this purpose, it doesn’t matter. Within all ThruLine matches, I found three Estes males who all descend through John R. Estes. Check every generation.

However, Luremia Combs shows promise for mitochondrial DNA descendants. Unfortunately, only two of her daughters are represented in ThruLines, and both of their descendants descend through Luremia’s grandsons. That’s too bad, because I need Luremia’s mitochondrial DNA line.

It’s easy to message your Ancestry matches. You may want to mention that they can upload their DNA file to FamilyTreeDNA for free where they will receive more matches and males will receive a complimentary mid-level Y-DNA haplogroup.

Please note that, in general, ThruLines need to be evaluated very carefully and are prone to errors, especially if you accept Ancestry’s suggestions of ancestors instead of carefully building out your own tree. Regardless, you can still find Estes cousin matches in your match list and by using ThruLines to find people that do not show up in an “Estes” match search.

Step 8 – At 23andMe

At 23andMe, you can search for anyone who either has the Estes surname or has included that surname in their “Family surnames” list. Keep in mind that your matches at 23andMe are restricted to either 1500 if you don’t have a subscripition, or about 4500 if you do have a subscription.

On my match list, I have two males with the Estes surname.

23andMe provides a mid-level Y-DNA haplogroup. You can’t use this to confirm the lineage when comparing with FamilyTreeDNA, especially given that 23andMe provides no genealogy or user-provided tree, but it is a clue.

Both Estes men at 23andMe have Y-DNA haplogroup R-CTS241. You could use this in some cases to potentially eliminate these matches at 23andMe. For example, if men in your lineage in the Estes project are in haplogroup R and your 23andMe matches are showing as haplogroup E, or any other base haplogroup, their common ancestor is tens of thousands of years ago.

Comparing the 23andMe haplogroup, which in this case is about 4500 years old, to contemporary testers who have taken the Big Y-700, which reaches within a few generations, isn’t terribly useful. These matches are extremely useful to identify individuals to reach out to for further information and potentially offer a Y-DNA testing scholarship at FamilyTreeDNA.

Remember, this also applies to females who have included Estes in their family surnames, given that they may have Estes male relatives.

By clicking to view your match, you can see if they have provided Family Background information, including a link to a family tree someplace.

Sometimes, there’s great information here, and other times, nothing.

You can’t verify this lineage without genealogy information.

I suggest leaving a genealogy-focused message, including where they can see your tree in addition to your Estes connection. Also include your e-mail.

You may want to say that if they descend appropriately, you have a Y-DNA or mitochondrial DNA testing scholarship, or you may want to wait to see how they descend. You can also ask if they have already taken a Y-DNA or mitochondrial DNA test at FamilyTreeDNA.

Step 9 – FamilySearch and Relatives at RootsTech

We’re getting ready for RootsTech 2025 which takes place in March. In the month or so before the last two RootsTechs, FamilySearch provided an absolutely wonderful tool called “Relatives at RootsTech.”

I’ve written about this several times, but essentially, you can see, by ancestor, other people who are registered both in-person and virtually for RootsTech, and how they descend.

Here’s an example.

In both years, I’ve found several people who descended from common ancestors AND were very willing to take the relevant DNA test. That’s a huge win-win for everyone.

The best part is that because these people have freshly registered for RootsTech, the reply rate is almost 100%.

I’ll write about this as soon as RootsTech makes it available this year. Fingers crossed that they do!

Step 10 – Social Media

Social media wouldn’t be my first choice to find DNA testers, but I have found perfectly willing cousins this way. You may be less successful on Facebook or other social media platforms, but if you’re striking out elsewhere, there’s absolutely no downside to trying.

You can enter a surname and search on Facebook, but I prefer to do a Google search like “Estes genealogy on Facebook” or even just “Estes genealogy,” which will produce far more widespread information, some of which may be irrelevant.

That Facebook Google search provided the names of two groups. People join groups because they have an interest, and I’ve had good luck in Facebook genealogy groups.

A Search of “Estes” on Facebook itself, then selecting “people” provided a list of Estes Facebook users.

I’ve had far better luck by joining a group that is focused on Estes genealogy, or even a county genealogy group that includes Estes families, than individuals. People who join any Estes group or project likely have an interest in that surname.

If you have a common surname, or there’s a park named after your surname, like Estes Park, you’ll probably want to focus by using Google searches for Estes genealogy.

The Descendants of Abraham Estes Facebook group has 222 members, of whom at least 31 are males with the Estes surname. Facebook just might be an underestimated resource.

If there isn’t a genealogy-focused group for your surname, you might want to consider starting one and encouraging people to join.

It can’t hurt, and it just might help. Before you start reaching out to random people on Facebook, please do a privacy checkup – I wrote about how, here.

Sale Prices

Remember, the sale prices at FamilyTreeDNA for new tests and upgrades last through year-end.

In my experience, it’s best to test as soon as someone agrees. You never know what will happen otherwise. I’ve had people pass away before they could swab. And yes, we’ve done funeral home swabs, too.

There’s no one-size-fits-all, but here’s a rough draft contact letter.

Potential Contact Letter

You’ll want to include several critical pieces of information.

Essentially:

  • Introduce yourself
  • Say their full name on their test AND the testing company in the title of an email. I manage many tests and if I receive an email that says, “Hi, can you tell me how we match” without telling me which person they match, I can’t even begin to answer.
  • Explain your genealogy connection
  • State your purpose in writing
  • Explain how a specific test will help them too
  • Offer to answer questions

Be sure to modify this letter to reflect your own voice and circumstances. You don’t want this to read like a form letter.

Dear cousin (insert their full name here,)

It was so nice to find our DNA match at <company name> (or we share a common ancestor, or appropriate circumstance.) (If you are managing someone else’s kit, say the name of who they match and explain that you manage their DNA kit.)

I descend from (ancestor plus birth and death date) who lived in Halifax County, Virginia and was married to (spouse.) You can view my tree at (insert link that does not require a subscription for viewing unless you match them on that platform. I use MyHeritage because everyone can view their trees)

I would very much like to confirm that our line descends from Abraham Estes (or relevant information meaning your reason for wanting them to test.)

Given that my surname is x (or I’m a female), we need to test the Y-DNA of a male who is descended from (ancestor) through all males to the current generation. (Or mitochondrial DNA descended through females to the current generation which can be male.)

FamilyTreeDNA provides this testing and shows who you match on that specific line using the Y chromosome (mitochondrial DNA).

This testing may connect us with earlier ancestors. Genetics can be used to determine when we share common Estes ancestors with others who test, where we come from overseas, and when. Even if we match ancient DNA samples that may tell us where our ancestors lived before surnames. In other words, where did we come from?

(Include a nice paragraph, but not a book about your ancestral lineage here.)

I have a DNA testing scholarship for someone from this line and you are the perfect candidate. I would like to take advantage of the current sales. If you’re interested, I only need two things from you.

First, permission so that I can order (or upgrade) and pay for the test, and second, an address where to send the test (unless it’s an upgrade). (If it’s an upgrade at FamilyTreeDNA, they can use a stored sample or will sent them a new kit if there’s not enough DNA.)

If you have any questions, please let me know. I’m very excited that we may be able to learn more about our heritage.

Please email me at xxx or call me at xxx if you have questions.

Your name

I know one person who offers to review results over Zoom. Someone else stresses that the tester’s email is attached to their test and they are always in control of their results. Another person asks them to join a project they manage to assure that they can follow their matches over time.

Customize this communication in your own voice and to fit the circumstances of each match.

It’s just me, but since I’m ordering while the tests are on sale, unless the person uploads their DNA file from another vendor, I add on a Family Finder test too and explain why. You never know if they will match you or another cousin, and they may have that match that eventually breaks down the next brick wall. Shared matches are powerful evidence and it’s a lot easier to add that test on now than try to contact them again later.

You Don’t Know What You Don’t Know

Which ancestors do you need Y-DNA or mitochondrial DNA results for? Methodically check each line.

There’s so much to learn. Don’t leave information on the table by virtue of omission.

Leave no stone unturned!

You don’t know what you don’t know.

Who’s waiting out there for you?

____________________________________________________________

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Six Ways to Figure Out How We’re Related

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In my latest Webinar, Six Ways to Figure Out How We’re Related, I discuss the various tools from Ancestry, FamilyTreeDNA, MyHeritage, and 23andMe – plus clusters from Genetic Affairs and the amazing DNAPainter.

This webinar lives in the Legacy Family Tree Webinar library, but as part of the “webtember” lineup, you can view it for free through the end of September.

It’s always exciting to discover a new match at one of the DNA testing companies, which, of course, begs the question of how you’re related.

So, what are the six ways to figure out how you’re related, and how do you use them?

Come along for a step-by-step guide!

Shared Matches

We begin with how each vendor handles shared matches, what that feature is called, where to find the information, and how to interpret what they are telling you.

23andMe goes a step further and creates a genetic tree, of sorts, although that functionality has changed since their breach last October.

Bucketing and Sides

Two vendors go a step further and provide unique tools to divide your matches maternally and paternally.

FamilyTreeDNA buckets your matches maternally and paternally (or both) based on matches you link to their profile cards in your tree. FamilyTreeDNA then uses your linked matches to triangulate with other matches and assign your matches accordingly, providing a maternal and paternal match list. Bucketing, also known as Family Matching, is one of my favorite tools.

Note that linking matches at FamilyTreeDNA requires that you have transferred your tree to MyHeritage. I wrote about that and provided instructions here and here, and produced a complimentary webinar, too.

Ancestry also divides your matches by parent, but they use a different technique based on their Sideview technology and either ethnicity or shared matches.

Surnames and Locations

Surnames and locations, either separately or together, provide HUGE hints!

MyHeritage provides a nice summary for each of your matches that includes ancestral surnames, a map of locations in common, and “Smart Matches” which shows you people in common in both of your trees. There are several ways to use these tools.

FamilyTreeDNA also provides a list of surnames. You can view either the surnames in common with a match, or all of their ancestral surnames, with locations if provided. The tester enters these surnames, and we review how to complete that step.

Ancestry also provides shared surnames, with clickable links to the number of people in your matches tree with that surname, plus common locations.

X-DNA

X-DNA is probably the most underutilized DNA matching tool. While each of the vendors actually test the X chromosome, only one, FamilyTreeDNA, provides X-matching. You can obtain X-matching results by uploading your DNA file to FamilyTreeDNA. I’ve provided upload/download instructions for all companies, here.

X-DNA has a very unique inheritance pattern because males only inherit an X chromosome from their mother which limits the number of potential common ancestors for any two testers. In other words, X-DNA matching does half your work for you!

Clustering Technology – AutoClusters, the Matrix and DNAPainter

In the past few years, match clustering has become a very useful tool. Clustering shows which of your matches match you and each other.

Genetic Affairs offers several flavors of these clusters, and both MyHeritage and GEDmatch have incorporated Genetic Affairs clusters into their product offerings.

If you haven’t used AutoClusters yet, by all means, try them out.

FamilyTreeDNA offers the Matrix, a slightly different version of clustering. You can select 10 people from your match list to see if they also match each other. Shared matches don’t automatically mean triangulation between you and those two people, or even that all three people descend from the same line. However, if the people are bucketed to your same side (parent) and they share common segments with you in the chromosome browser, they triangulate.

You’ll want to paint those matches to DNAPainter to determine which ancestor you share, especially if they haven’t provided a tree.

DNAPainter provides your chromosomes as the “canvas” upon which to paint your matches in order to correlate segments with ancestors and identify common ancestral lines with mystery matches.

Three vendors, FamilyTreeDNA, MyHeritage, and GEDmatch provide segment information with matches for you to paint. I illustrate how I walk segments back in time, identifying our most distant common ancestor possible.

Theories of Family Relativity and ThruLines

Both MyHeritage and Ancestry provide a combination of DNA matching and tree triangulation, where they search the trees of your DNA matches to find common ancestors with you – although their implementation is different.

MyHeritage’s Theories of Family Relativity provides varying theories about common ancestors for you and a specific match using both trees and historical documents. You can review the various pathways and confirm or reject theories. I love this tool.

Ancestry’s Thrulines functions a bit differently, showing you all of your matches that descend from a common ancestor in all your matches’ trees. Sometimes, the trees are incorrect, but Theories of Family Relativity and ThruLines should still be used as hints.

I showed how ThruLines helped me discover what happened to one of my ancestor’s grandchildren who was lost to the family at his mother’s death – and to all of us since. Not anymore.

Bonus – Y-DNA and Mitochondrial DNA at FamilyTreeDNA

Only FamilyTreeDNA offers both Y-DNA and Mitochondrial DNA testing and matching. All of the tools above pertain to autosomal DNA testing, which is named Family Finder at FamilyTreeDNA. Illustrated by the green arrow below, autosomal DNA testing measures and compares the DNA you inherited from each ancestral line, but that’s not the only game in town.

Y-DNA, in blue, for males, tracks the direct paternal line, which is the surname line in Western cultures. Mitochondrial DNA, in red, is passed from mothers to all of their children. Therefore, everyone can test, revealing matches and information about their mother’s direct matrilineal lineage.

Y-DNA testing includes the amazing Discover tool with a baker’s dozen different reports, including ancient DNA. Mitochondrial DNA will soon have its own MitoDiscover after the rollout of the new Mitotree.

Both tests include “Matches Maps” to help you determine how you are related to your matches, as well as where your ancestors came from before the advent of surnames.

The Advanced Matching feature allows you to select multiple tests to see if your matches match you on combined types of tests.

Tune In

Now that you know what we cover in the webinar, please tune in to see how to use these awesome tools. Be sure to fish in all four “ponds” plus GEDmatch, where you may find people who didn’t test at a company that provides a chromosome browser or matching segment information.

Tools provided by the DNA testing vendors facilitate multiple ways to determine how we match and which ancestor(s) we have in common.

You can watch the webinar, here.

Additionally, subscribers to Legacy Family Tree Webinars have access to the 25-page syllabus with even more information!

A Legacy Family Tree Webinar subscription normally costs $49.95 per year, but through the end of September, there’s a coupon code good for 20% off. Just click here, then enter webtember24 at the checkout.

Enjoy!

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DNA Academy Webinar Series Released

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Great news! Legacy Family Tree Webinars has just released DNA Academy.

DNA Academy is a three-part series designed to introduce the basics of DNA for genetic genealogy and how Y-DNA, X-DNA, mitochondrial and autosomal DNA can be utilized. Each of these different types of DNA serves a different function for genealogists – and reveals different matches and hints for genealogy.

  1. DNA Academy Part 1 introduces genetic genealogy basics, then, Ancestry’s DNA tools – including their new pricing structure for DNA features. Click here to view.
  2. DNA Academy Part 2 covers FamilyTreeDNA’s products. Click here to view the webinar, which includes:
    1. Y-DNA for males which tracks the direct paternal line
    2. Mitochondrial DNA for everyone which tracks your direct maternal line – your mother’s mother’s mother’s lineage
    3. Autosomal DNA which includes matches from all of your ancestral lines and along with X-DNA matching, which has a very distinctive inheritance path.
  3. DNA Academy Part 3 includes MyHeritage, 23andMe, and third-party tools such as DNAPainter and Genetic Affairs. Click here to view.

Legacy Family Tree Webinars has graciously made Part 2, the FamilyTreeDNA class, free through August 22nd for everyone – so be sure to watch now.

After August 22nd, Part 2 will join Part 1 and Part 3 in the webinar library for subscribers with more than 2240 webinars for $49.95 per year.

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The Big Y-700 Test Marries Science to Genealogy

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Recently, one of my long-time friends and project co-administrators asked me a simple question.

  • What do the FamilyTreeDNA Big Y-700 test and the Time Tree tell us when we have genealogy trees provided by testers?
  • What does the Discover Time Tree tell us that’s different, and how do we reconcile the Time Tree and genealogy?

Those are great questions.

Sometimes, I get so buried in the details of genetic genealogy that I neglect the obvious, so I’m writing this article for my co-admin and anyone else with the same questions.

Time Tree Versus Genealogy Question

Of course, as a genealogist, my first answer would be that we always need to be cautious about user-provided trees. Even when the genealogy is accurate, that’s no guarantee there wasn’t a biological disruption that caused the genetic line not to be the same as the surname line.

Almost every lineage has examples of people whose genealogy was “off” or misattributed paternity occurred someplace upstream, meaning that someone carries the surname but does not descend from that biological lineage.

However, relative to DNA projects, the Big Y-700 tests provide one very important feature that STR testing does not and cannot do.

The Big Y-700 test creates a genetic tree, in conjunction with other testers, which provides scientifically calculated dates when branches of the genetic tree were formed.

The genetic tree should align, at least closely, with testers’ genealogical trees.

In other words, if their genealogy is accurate, testers “should” fit in (or at least near) the appropriate places on the branches of the genetic tree.

Furthermore, for people trying to sort out their actual branch in the tree, the Big Y-700 test is MUCH MORE reliable than the earlier STR (short tandem repeat) tests that are prone to random and back mutations. At one time, STR tests were all that was available, but now,  SNPs have been added to our arsenal. SNPs (single nucleotide polymorphisms) are extremely stable and reliable mutations.

I’m getting ready to record a new Y-DNA webinar, and I’m giving you a sneak peek of a couple of my slides here. I’ll publish an announcement when the webinar is available.

STRs Versus SNPs

Historic Y-DNA testing tested only a limited number of STR locations. That test reported the number of repeats at a specific genetic location on the Y chromosome. Today, the 37, 67, and 111 marker STR tests are still available to purchase.

What are the major differences between the two types of tests, and why would someone purchase one over the other?

If you purchase one of the STR tests, you purchase testing at a specific number of locations, such as 37, 67, and 111. The Big Y-700 test includes at least 700 STR locations, but the specificity of the Big Y-700 SNP testing replaces most of the STR test results in terms of lineage definition.

SNP mutations, when discovered in more than one man in a particular haplogroup lineage, are then named as haplogroups. That mutation is then found in each directly descended male in that line.

STR – 37, 67, 111 Big Y-700 (STRs & SNPs)
Tests A limited number of repeat STR markers – Big Y guarantees 700+ NGS scan targets ~ 25 million locations
Focus Comparatively short genealogy timeframe All-inclusive – recent genealogy plus older to ancient
Includes Can upgrade to Big Y-700 Includes STR tests, separate matching, Globetrekker, Discover, and more
Tree Genealogy, customer provided Genetic Tree – Group Time Tree coordinates with genealogy if provided
Tools STR tools STR tools plus SNP tools & robust Discover
Haplogroup Estimated based on STR values Confirmed to the most granular level possible – evergreen
Useful When Exclusion testing, less costly, entry-level Discover provides lineage, ancient DNA, TMRCA, and more
Matching STRs only STR plus Big Y – both can be useful
Trees Customer provided genealogy Time Tree, Group Time Tree, Block Tree, Classic Tree + 1 more soon

Put simply, the STR tests are now entry-level. Once you see what the Big Y-700 provides, you’ll absolutely want to upgrade to that test. Most of the time, if I know I’m testing someone from the correct line, I just purchase the Big Y-700 out the gate. If I’m not sure I’m testing the correct lineage, I’ll purchase the STR test first to make sure they match the correct lineage before upgrading to the Big Y-700.

Discover

The Discover tool was introduced to provide additional information to Big Y testers and others seeking haplogroup information. STR results can only predict a relatively high-level haplogroup, usually a few thousand years ago, while the Big Y-700 provides testers with an extremely granular haplogroup – usually decades to a few hundred years ago. Often, living men that span 2 or 3 descendant generations (grandfather, father, sons) discover that they have their own haplogroup branch on the tree of mankind!

However, if no one else from your line has tested in hundreds of years, Discover can only work with available information.

Let’s take a quick look at the Estes Group Time Tree.

Estes Project Group Time Trees

Group projects have Group Time Trees. You can view the Estes surname project, here. You can find a project for any surname by either googling “<surname> DNA Project” or scrolling to the VERY bottom of the FamilyTreeDNA main page.

If you’re signed into FamilyTreeDNA, you can also find projects in the top banner.

Once you’re on the project page, you’ll see an option for DNA Results (assuming the administrators have not made the project entirely private.)

Click on the DNA Results link and select Y-DNA.

Next, you’ll see “Group Time Tree.”

Group Time Tree Display

What appears next depends on how the project administrators have grouped the project participants.

I’ve grouped the Estes project by genealogical line, with the exception of a couple of people who carry the Estes surname but have experienced an adoption or other unknown parental event in their Estes lineage.

In some cases, there are simply two same-name lineages that were never from the same biological line. Unfortunately, occasionally they settle in the same place, making the genealogy difficult. Even worse, until Y-DNA testing came along, there was often no way to know they were two different families.

This situation is actually where the Big Y-700 test shines.

 

The Group Time Tree shows the genetic tree scientifically constructed from the SNP results of the Big Y-test results of the testers, at left. At right you’ll see the surnames of the testers along with their Earliest Known Ancestor (EKA) if they have entered that information.

Initially, you don’t even realize you’re actually looking at two types of information merged together. This display allows testers to see the genetic branching tree structure, at left, which is reflective of their actual genealogy, at right.

You can see that the birth year of Sylvester Estes, entered by a tester with haplogroup R-BY482, is 1622. Please note, there’s a typo. Sylvester was born in 1522, NOT 1622. This is a perfect example of what I meant by tree information sometimes being inaccurate and it’s very important when trying to correlate the genetic tree and the user-provided genealogy.

We discovered that R-BY482 (red profile above, at left) is an Estes “signature” haplogroup for the Estes line originating in Deal, England, with three other haplogroups that formed in descendant generations. We know this because every descendant from this line has this mutation.

R-BY490 was formed between Sylvester’s son Robert Estes, born about 1555, and his son, born about 1600, also named Sylvester. We know this because all of the descendants of Sylvester (born circa 1600) carry this mutation, but Robert’s son, Robert, born in 1603, does not.

The genealogy portion of the Group Time Tree, above, doesn’t reveal that information because testers either don’t know their genealogy that far back or perhaps listed an earlier known ancestor, such as Nicholas, born in 1495.

Click to enlarge

I created a spreadsheet tracking the Big Y-700 testers of the descendants of Nicholas Estes, along with their descendant haplogroups.

We know that Robert, born in 1555, carries R-BY490 because both of his sons, Abraham and Richard, inherited that mutation, seen with green arrows.

However, this calls into question the associated genealogy because if Robert, born in 1603, descended from Robert, born in 1555, he too would have the mutation R-BY490 since Robert’s other two sons do. Note that the user-provided birth year typo of 1622 which should be 1522 is a century off – enough to be within the genetic band haplogroup birth band – but impossible for the genealogy table.

There is one other possibility: kit 166011, the descendant of Robert born in 1603, could have taken the earlier Big Y-500 test and never upgraded to the more powerful Big Y-700. That’s too much detail for this article, but the discrepancy between the genetic tree and the genealogy tree alerts us that additional research is warranted. The genealogy submitted for tester 166011 confirms that, indeed, 1622 is a typo.

There are no other descendants of known sons of Nicholas or Sylvester born in 1522 to test, but perhaps another will surface one day.

You can see that the more testers in any particular line, the more granularity we can achieve.

The Genetic Tree

How close is the genetic tree to the genealogical tree that has been confirmed?

We know that Sylvester was born in 1522, and his father Nicholas in about 1496. The scientifically calculated creation date of R-BY482 is 1493, just 3 years before the birth of Nicholas. Based on this, there’s a good chance that this mutation occurred between Nicholas’s unknown father and him, or perhaps between Nicholas and Sylvester.

You can view the scientific details of any haplogroup in Discover.

Discover’s BY-482 scientific details page shows its creation date range.

Marriage

You can see that the scientifically created tree and the genealogy information are both important.

In fact, the combination of both allowed us to identify the correct branch of a Wilbur man who matches Estes men but doesn’t know where he fits in the tree.

His haplogroup placed him definitively on the more recent R-BY154784 branch, and his autosomal results then confirmed his specific path of descent because he matches descendants of three generations of Estes men’s wives, showing that his branch descends from Joseph Estes and his wife Ritty Lee, through son Chism, on down to our tester. In this case, autosomal DNA results provided a boost-assist to the genealogy, which helped identify the generation that the Y-DNA haplogroup R-BY154784 actually formed.

This also informs us that Joseph Estes, born in 1780, carried haplogroup R-BY154784 because both of his sons have it. If Joseph hadn’t had that mutation, then both of his sons couldn’t have inherited it.

Therefore, the mutation that formed haplogroup R-BY154784 had to occur between Moses, born in 1711, and John, born in 1732. We know that because Moses’s other son’s descendants do not have that haplogroup.

The more descendants of any ancestor that test, the more specific and accurate the descendant haplogroup formation dates will be.

The marriage of genetic trees and genealogy is powerful indeed.

More Information

For those seeking more information, 70 pages of my new book, The Complete Guide to FamilyTreeDNA – Y-DNA, Mitochondrial, Autosomal and X-DNA is devoted to Y-DNA results.

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Great News – Both e-Pub and Print Version of “The Complete Guide to FamilyTreeDNA” Now Available Worldwide  

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  • Anyone, anyplace, can order the full-color, searchable, e-pub version of The Complete Guide to FamilyTreeDNA – Y-DNA, Mitochondrial, Autosomal and X-DNA from the publisher, Genealogical.com, here.
  • Customers within the US can order the black and white print book from the publisher, here.
  • Customers outside the US can order the print book from their country’s Amazon website. The publisher does not ship print books outside the US due to customs, shipping costs, and associated delays. They arranged to have the book printed by an international printer so that it can be shipped directly to Amazon for order fulfillment without international customers incurring additional expenses and delays. If you ordered the book previously from Amazon and a long delivery time was projected, that should be resolved now and your book should be arriving soon.

Comprehensive

This book is truly comprehensive and includes:

  • 247 pages
  • More than 267 images
  • 288 footnotes
  • 12 charts
  • 68 tips
  • Plus, an 18-page glossary

To view the table of contents, click here. To order, click here.

Thank you, everyone, for your patience and your support.

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Complete Guide to FamilyTreeDNA Released in Hardcopy

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Just what many of you have been waiting for! The hardcopy print version of the Complete Guide to FamilyTreeDNA has just been released.

As shown in the table of contents below, The Complete Guide to FamilyTreeDNA contains lots of logically organized information! It includes basic education about genetic genealogy and how it works, instructions on using the FamilyTreeDNA tests and tools, plus an extensive glossary.

Enjoy!

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Announcing: The Complete Guide to FamilyTreeDNA; Y-DNA, Mitochondrial, Autosomal and X-DNA

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I’m so very pleased to announce the publication of my new book, The Complete Guide to FamilyTreeDNA – Y-DNA, Mitochondrial, Autosomal and X-DNA.

For the first time, the publisher, Genealogical.com, is making the full-color, searchable e-book version available before the hardcopy print version, here. The e-book version can be read using your favorite e-book reader such as Kindle or iBooks.

Update: The hardcopy version was released at the end of May and is available from the publisher in the US and from Amazon internationally.

This book is about more than how to use the FamilyTreeDNA products and interpreting their genealogical meaning, it’s also a primer on the four different types of DNA used for genealogy and how they work:

  • Autosomal DNA
  • Mitochondrial DNA
  • Y-DNA
  • X-DNA

There’s a LOT here, as shown by the table of contents, below

This book is chocked full of great information in one place. As an added bonus, the DNA glossary is 18 pages long.

I really hope you enjoy my new book, in whatever format you prefer.

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Pedigree Collapse and DNA – Plus an Easy-Peasy Shortcut

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Pedigree collapse can be responsible for you sharing more DNA than expected with another person.

What is pedigree collapse?

Pedigree collapse occurs when you descend from the same ancestor(s) through more than one path. In other words, you descend from those ancestors through two different children. Therefore, when matching with someone else who descends through those ancestors, you may share more DNA than would be expected from that level of relationship on the surface, meaning without pedigree collapse.

Endogamy is different and means that you descend from a community of ancestors who descend from the same group of ancestors. Often out-marriage is discouraged or otherwise impossible, so all of the group of people share common ancestors, which means they often match on segments without sharing close ancestors. Examples of descent from endogamous populations are Jewish, Amish, Brethren, Acadian, Native Hawaiian, Māori, and Native American people, among others.

I wrote about the difference between pedigree collapse and endogamy in the article, What’s the Difference Between Pedigree Collapse and Endogamy?

I’ve also written about endogamy in the following articles:

Degrees of Consanguinity

If you’re a genealogist, and especially if you’ve worked with Catholic church records, you’ve probably heard of “degrees of sanguinity,” which are prohibited blood relationships in marriage. For example, siblings are prohibited from marrying because they are too closely related, according to church doctrine.

By SVG remake by WClarke based on original by User:Sg647112c – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=54804980

Today, we think of the genetic results of inbreeding, but originally, relationships (and consanguinity) also had to do with inheritance.

Essentially, marriages are prohibited by degree of sanguinity, and that degree is calculated based on this relationship chart. Prohibited degrees of consanguinity changed over time. Sometimes, a priest granted dispensation for a couple to wed who was of a prohibited degree of sanguinity. That’s a genealogy goldmine because it tells you where to look for common ancestors. It also tells you something else – that you may share more DNA with other descendants of that couple than one would otherwise expect.

More Than You Ever Expected

Recently, I’ve been working with an academic research team on a very interesting ancient DNA case that involves pedigree collapse. Doing the genealogy and genetic work on how much DNA was expected in a match without pedigree collapse, and how much was expected with pedigree collapse, was very interesting.

The team was working to confirm relationships between people in a cemetery. The burials shared more DNA than anticipated for who the people were believed to be. Enter pedigree collapse.

I can’t disclose the circumstances just yet – but I will as soon as possible. It’s an extremely interesting story.

We needed to ensure that readers, both academic and more generally understood pedigree collapse and our calculations. Why did burials share higher than expected DNA than indicated by the expected relationships? This puzzle becomes much more interesting when you add in pedigree collapse.

Academic researchers and scientists have access to models and mathematical algorithms that normal air-breathing humans don’t have easy access to.
So, what do you do if you and a match have a known pedigree collapse in your tree? How much DNA can you expect to share, and how do you calculate that?

These are all great questions, so let’s take a look.

I’m sharing the PowerPoint slides I prepared for our team on this topic. I’ve removed anything that would identify or even hint at the project and modified the slides slightly for easier consumption.

This presentation has never been given publicly, so you’re first! It seemed a waste to do this work and not share it!

Pedigree Collapse and DNA

Pedigree collapse occurs when you share an ancestor or ancestors through different pathways. In this case, the person at the bottom is the child of parents who were third cousins, but the father’s grandparents were also first cousins.

First cousin marriages were common in the not-too-distant past. Today, you could easily marry your third or fourth cousin and not even realize it unless someone in your family just happened to be a genealogist.

Genealogists use various tools to calculate the expected amount of shared DNA in relationships – first cousins, siblings, or half-siblings, for example. Both the Shared cM Project at DNAPainter and SegcM at DNA-Sci Tools provide tools.

Take a look at the article, DNA: In Search of…Full and Half-Siblings, for some great examples.

First cousins share common grandparents. Their child inherits DNA from two paths that lead back to the same ancestors. Some of that DNA will be the same, meaning the child will or can inherit the same ancestral segment from both parents, and some will be different segments from those ancestors that the parents do not share with each other.

Inheritance – How It Works

Let’s look at inheritance to see how this happens.

Let’s start with full and half-siblings.

Each child inherits half of their DNA from each parent, but not entirely the same half (unless they are identical twins.)

Therefore, full siblings will match on about 50% of their DNA, which is illustrated by the segments on the chromosome browser. However, and this will be important in a minute, about 25% of their DNA is exactly the same, when compared to each other, on the chromosome inherited from their father and mother at the same location.

On the chromosome browser, you can see that three siblings do match. One sibling (the grey background chromosomes) is the person both other full siblings are being compared to, in the example above.

What you can’t determine is whether they share the exact same DNA on both their mother and father’s Chromosome 1, where the matches overlap, for example. We know they both match their sibling, but the top person could match the sibling due to a match from their paternal chromosome in that location, and the bottom person could match due to their maternal chromosome. There’s no way to know, at least not from that view.

The areas where the siblings share exactly the same DNA on both their maternal and paternal chromosome, both, with each other are called Fully Identical REgions (FIR), as compared to Half Identical Regions (HIR) where the siblings match on either their maternal or paternal copy of the chromosome, but not both.

23andMe used to provide a tool that displayed both types of matches.

Since the data exposure incident at 23andMe, they no longer provide this lovely tool, and since that help page is now gone as well, I doubt this view will ever be returned. Fortunately, I grabbed a screenshot previously.

The dark purple segments are fully identical, meaning that these two full siblings match on both their maternal and paternal chromosomes in that location. The magenta are half identical, which means they match on EITHER the maternal or paternal chromosome in that location but not on both chromosomes. Of course, no color (light grey) means there is no match at that location.

Please note that because 23andMe counts fully identical regions (FIR) twice, their total matching cMs are elevated. The other companies do NOT count those regions twice.
GEDmatch also shows both full and half-identical regions as described more fully, here.

In this full-sibling example from GEDmatch, the green segments are fully identical regions across both the maternal and paternal chromosomes.

The definition of FIR is that two people match on both their mother’s and father’s DNA on the same chromosome. Therefore, in following generations, there technically should not be FIR matches, but in some instances we do find FIR matches outside of full siblings.

Moving down another generation, first cousins may share SOME fully identical DNA, especially if they are from an endogamous population or their mothers are related, but less, and it’s generally scattered.

Here’s my Mom’s GEDmatch comparison to her first cousin. The purple-legend segment shows a match, and the green within that match shows fully identical locations.

You can easily see that these are very scattered, probably representing “chance” or population-based fully identical matching locations within a segment. Comparatively, the green FIR segments for full siblings are dense and compact, indicating a segment that is fully identical.

Evaluating matches for dense FIR segments (known as runs of homozygosity – ROH) is a good indicator of parental relatedness.

Double Cousins

Of course, if these people were double first cousins, where the wives of the siblings were sisters to each other – the first cousins would have large patches of dense green FIR segments.

First cousins share grandparents.

Double first cousins occur when two people share both sets of grandparents, meaning that brothers marry sisters. Normal first cousins share about 12.5% of their DNA, but double first cousins share about 25% of their DNA.

In this case, Sharon and Donna descend from two brothers, James and Henry, who were sons of Joseph and Jane. In this scenario, James and Henry married unrelated women, so Sharon and Donna are first cousins to each other.

Double first cousins share both sets of grandparents so they would inherit FIR from both sets of siblings.

You need to be aware of this, but for now, let’s stick with non-double relationships. You’re welcome!

DNA Inheritance

Here’s a different example of DNA inheritance between two siblings.

  1. You can see that in the first 50 cM segment, both siblings inherited the same DNA from both parents, so they match on both their mother’s and father’s chromosomes. They match on both the 50 cM green and 50 cM pink segments. 23andMe would count that as 100 cMs, but other vendors only count a segment IF it matches, NOT if it matches twice. So, other vendors count this as a 50 cM match.
  2. In column two, these two people don’t match at all because they inherited different DNA from each parent. In this example, Person 1 inherited their maternal grandmother’s segment, and Person 2 inherited their maternal grandfather’s segment.
  3. In column three, our siblings match on their paternal grandmother’s segment.
  4. In column four, no match again.

How much can we expect to inherit at different levels – on average?

Different tools differ slightly, and all tools provide ranges. In our example, I’ve labeled the generations and how much shared DNA we would expect – WITHOUT pedigree collapse.

Ancestral couple Inherited cM Inherited %
Gen 1 – Their children 3500 cM 50
Gen 2 – Grandchildren 1750 cM 25
Gen 3 – Great-Grandchildren 875 cM 12.5
Gen 4 – GG-Grandchildren 437.5 6.25
Gen 5 – GGG-Grandchildren 218.75 3.125
Gen 6 – GGGG-Grandchildren 109.375 1.5625
Gen 7 – GGGG-Grandchildren 54.6875 .078125

Please note that this is inherited DNA, not shared (matching) DNA with another person.

Adding in pedigree collapse, you can see that we have three Gen 1 people involved, three Gen 2 descendants, and two Gen 3 and Gen 4 people.

Each of those people inherit and pass on segments from our original couple at the top.
We have three distinct inheritance paths leading from our original couple to Gen 5.
We have a first cousin marriage at Gen 2, at left, which means that their child, Gen 3, will have an elevated amount of the DNA of their common ancestors.

In Gen 4, two people marry who both descend from a common couple, meaning their child, Gen 5, descends from that couple in three different ways.

Did your eyes just glaze over? Well, mine did, too, which is why I had to draw all of this out on paper before putting it into PowerPoint.

The Gen 5 child inherits DNA from the ancestral couple via three pathways.
The next thing to keep in mind is that just because you inherit the DNA from an ancestor does not mean you match another descendant. Inheritance is not matching.

You must inherit before you can match, but just because you and someone else have inherited a DNA segment from a common ancestor does not guarantee a match. Those segments could be in different locations.

Categories of DNA

When dealing with inheritance and descent, we discuss four categories of DNA.

  • In the first generation, full siblings will, in about 25% of their locations, share the same DNA that has been inherited from both parents on the same chromosome. In other words, they match each other both maternally and paternally at that location. Those are FIR.
  • The DNA you inherit from an ancestor.
  • The DNA that both you and your cousin(s) inherit from a common ancestor and match on the same location. This is shared DNA.
  • The DNA that both you and your cousin(s) inherit from a common ancestor, but it’s not in the same location, so you do not match each other on that segment. Just because you inherit DNA from that ancestor does not necessarily mean that your cousin has the same DNA from that ancestor. This is inherited but not shared.

Inheritance is Not The Same as Matching

Inheritance is not the same thing as matching.

Inheriting our ancestor’s DNA isn’t enough. We need to match someone else who inherited that same segment in order to attribute the segment to that specific ancestor.

Depending on how close or distant the relationship, two people may share a lot of DNA (like full siblings), or one segment in more distant matches, or sometimes none at all. As we reach further back in time, we inherit less and less of our increasingly distant ancestors’ DNA, which means we match increasingly fewer of their descendants. I wrote about determining ancestral percentages in the article,  Ancestral Percentages – How Much of Them is in You?

Based on how much DNA we share with other known relatives, we can estimate relationships.

Pedigree collapse, where one descends from common ancestors more than once, increases the expected amount of inherited DNA, which in turn increases the probability of a shared match with other descendants.

Ancestral Couple Matching Between Shared DNA ~cM Shared DNA ~% Range (Shared cM Project) FIR – Identical DNA
Generation 1 Full Siblings 2600 50 1613-3488 25%
Generation 2 First Cousins 866 12.5 396-1397 0
Generation 3 Second Cousins 229 3.125 41-592 0
Generation 4 Third Cousins 73 0.78125 0-234 0

Here’s an example through third cousins, including expected FIR, fully identical regions where full siblings match each other on both their maternal and paternal chromosomes in the same location.

I provided a larger summary chart incorporating the information from public sources, here, minus FIR.

Of course, double cousins, where two pairs of siblings marry each other, represent another separate level of complexity. DNA-Sci’s Double Cousin Orogen explains this here and also provides a tool.

Double cousins, meaning when two pairs of siblings marry each other, are different from doubly related.

Doubly related means that two people descend from common ancestors through multiple paths, meaning multiple lines of descent. Doubly related is pedigree collapse. Double cousins is pedigree collapse on steroids.

Pedigree Collapse, aka Doubly Related

Calculating expected inherited DNA from multiple lines of descent is a bit more challenging.

A handy-dandy chart isn’t going to help with multiple relationships because the amount of expected shared DNA is based on the number of and distance of relationships.

Please note that this discussion excludes X-DNA matching which has its own inheritance path.

It’s time for math – but I promise I’ll make this relatively easy – pardon the pun.

What’s Behind the Math?

So, here’s the deal. I want you to understand why and how this works. You may not need this information today, but eventually, you probably will. This is one of those “refer back to it” articles for your personal library. Read this once as a conceptual overview, then read it again if you need to work through the relationships.

This is easy if you take it one step at a time.

First, we calculate each path separately.

In the first generation, full siblings inherit identical (FIR) DNA on both their mother’s and father’s chromosomes.

In the second generation, the male inherits the maternal segment, and the female inherits the paternal segment.

In the third generation, their child inherits those segments intact from both of their parents. The child inherits from the ancestral couple twice – once through each parent.

In generation 1, those two segments were FIR, fully identical regions. Both of those men married unrelated wives. When their children, Gen 2, were born, they had either the maternal or paternal segment from their father because they had an entirely different segment in that location from their mother.

However, the child in Gen 3 inherited the original green segment from their father and the original pink segment from their mother – reuniting those FIR segments in later generations.

First Cousin’s Child

Let’s calculate the inheritance for the child of those two first cousins who married.

Ancestral couple Inherited cM Inherited %
Gen 3 – Great-Grandchildren 875 cM 12.5
Gen 3 – Great-Grandchildren 875 cM 12.5
Total 1750 cM 25

Normally, a Gen 3 person inherits roughly 875 cM, or 12.5% of their great-grandparent’s DNA. However, since their grandparents were first cousins, they inherit about twice that amount, or 1750 cM.

While a Gen 3 person inherits as much as a grandchild (25%) normally would from the original couple, they won’t match on all of that DNA. When matching, we need to subtract some of that DNA out of the equation for two reasons:

  • In the first generation, between siblings, some of their DNA was fully identical and cannot be identified as such.
  • In the second generation, they will each have some parts of the ancestral couple’s DNA that will not match the other person. So, they inherit the same amounts from their common ancestors, but they can only be expected to match on about 25% of that amount two generations later.

However, the child of first cousins who marry inherits more DNA of the common ancestors than they would if their parents weren’t related. It’s just that some of that DNA is the same, potentially on the maternal and paternal chromosomes again, and some won’t match at all.

While matching DNA is the whole point of autosomal DNA testing, fully identical DNA matching regions (FIR) cannot be identified that way. For the most part, other than identifying full and half-siblings, sometimes pedigree collapse, and parent-relatedness, fully identical DNA isn’t terribly useful for genealogy. However, we still need to understand how this works.

It’s OK if you just want to say, “I know we’ll share more DNA due to pedigree collapse,” but if you want to know how much more to expect, keep reading. I’d really like for you to understand use cases and be able to track those segments.

Remember, we will learn a super-easy shortcut at the end, so for now, just read. It’s important to understand why the shortcut works.

Sibling Inheritance Versus Matching

In order to compare apples to apples, sometimes we need to remove some portion of DNA in our calculations.

Remember story problems where you had to “show your work”?

Calculating Expected DNA

Here’s the step-by-step logic.

Ancestral couple Inherited Non-Identical cM Inherited %
Gen 1 first son 3500 50
Gen 1 second son 3500 50
Less identical segments (FIR) -1750 (subtracted from one child for illustration) 25
Gen 2 son 1750 25
Gen 2 daughter married Gen 2 son 875 12.5
Gen 3 – Their child path through Gen 2 son 875 cM 12.5
Gen 3 – Their child path through Gen 2 mother 437.5 cM 6.25
Their child total without removing identical segments 1750 cM 25
Their child total after removing identical segments 1312.5 18.75

Category cMs Most Probable Degree Relationship
No Pedigree Collapse 875 98% Great grandparent or great-grandchild, great or half aunt/uncle, great or half niece/nephew, 1C 3
Pedigree Collapse without identical segment removal 1750 100% Grandparent, grandchild, aunt/uncle, half-sibling, niece/nephew 2
Pedigree Collapse after identical segment removal 1312.5 56% grandparent, grandchild, aunt/uncle, niece/nephew, half-sibling 2

Just because you HAVE this much shared (and/or identical) DNA doesn’t mean you’ll match on that DNA.

Next, let’s look at Gen 5 child who inherited three ways from the ancestors.

If you think, “This will never happen,” remember that it did, which is why I was working through this story problem. It’s not uncommon for families to live in the same area for generations. You married who you saw – generally, your family and neighbors, who were likely also family.

Let’s take a look at that 5th generation child.

The more distantly related, the less pedigree collapse affects matching DNA. That’s not to say we can ignore it.

Here’s our work product. See, this isn’t difficult when you take it step by step, one at a time.

Ancestral couple Inherited Non-Identical cM Inherited %
Gen 3 Child total after removing identical segments 1312.5 18.75
Gen 4 father – half of Gen 3 father 656.25 9.375
Gen 5 child – half of Gen 4 father 328.125 4.6875
Gen 5 child – mother’s side calculated from ancestral couple normally 218.75 3.125
Total for Gen 5 Child 546.875 7.8125

Inheritance Ranges

Lots of factors can affect how much DNA a person in any given generation inherits from an ancestor. The same is true with multiple paths from that same ancestor. How do we calculate multiple path inheritance ranges?

As with any relationship, we find a range, or combined set of ranges for Gen 5 Child based on the multiple pathways back to the common ancestors.

Gen 5 Child Inherited Non-Identical cM Inherited %
Without removing either paternal or maternal identical cMs 656.25 9.375
After removing paternal identical cMs only 546.875 7.8125

 
After removing maternal cMs only 546.875 7.8125

 
After removing both paternal and maternal identical cMs 362.50 6.25
Normal Gen 5 no pedigree collapse 218 3.125

What About Matching?

Inheritance and matching are different. Most of the time, two people are unlikely to share all of the DNA they inherited from a particular ancestor. Of course, inheriting through multiple paths increases the likelihood that at least some DNA from that ancestor is preserved and that it’s shared with other descendants.

Two people aren’t expected to match on all of the segments of DNA that they inherit from a particular ancestor. The closer in time the relationship, the more segments they will inherit from that ancestor, which increases the chances of matching on at least one or some segments.

Clearly, pedigree collapse affects matching. It’s most pronounced in closer relationships, but it may also be the only thing that has preserved that ONE matching segment in a more distant relationship.

So, how does pedigree collapse actually affect the likelihood of matching? What can we actually expect to see? Is there a name for this and a mathematical model to assist with calculations?

I’m so glad you asked! It’s called Coefficient of Relationship.

Coefficent of Relationship

My colleague, Diahan Southard, a scientist who writes at YourDNAGuide has authored two wonderful articles about calculating the statistical effects of pedigree collapse.

You can also read another article about the methodology of calculating coefficient of relationship, here, on WaybackMachine.

Diahan is a math whiz. I’m not, so I needed to devise something “quick and dirty” for my own personal use. I promised you a “cheat sheet,” so here’s the methodology.

Two Inheritance Paths – First and Third Cousins

Let’s look at an example where two people are both first cousins and third cousins because their grandparents were also first cousins.

Let’s calculate how these two people are related. They are first cousins and also third cousins.

When calculating the effects of pedigree collapse, we calculate the first relationship normally, then calculate the second relationship and add a portion of the result.

Here’s the math.

Using the Shared cM Project for the expected amount of shared DNA for both relationships, we’ve calculated the expected range for this pedigree collapse relationship.

Tying this back to degrees of relatedness.

Let’s look at ways to do Quick Calculations using the publicly available Shared cM charts and my composite tables, here.

Using Average Shared DNA

This first methodology uses average expected amount of shared, meaning matching, DNA. Please note, I’m not necessarily expecting you to DO this now, just read to follow.

Using Average Inherited DNA

Here’s a second method using average inherited DNA, meaning people wouldn’t be expected to match on all of the inherited DNA – just a portion.

You can’t always use the shared cM charts because all relationships aren’t represented, so you may need to use the amount of expected inherited DNA instead of shared DNA amounts.

Methodology Differences

Remember, none of these methodologies are foolproof because DNA inheritance is random. You may also have additional relationships that you’re aware of.

So, what’s the easiest method? Neither, actually. I’ve found an even easier method based on these proven methodologies.

Easy-Peasy Pedigree Collapse Shortcut Range Calculation in 4 Steps

Now that you understand the science and reasoning behind all of this, you can choose from multiple calculation methodologies after drawing a picture of the relevant tree.

You’re probably wondering, “What’s the easiest way to do this?”

  • These quick calculation methods are the easiest to work with for non-scientists and non-math whizzes. These are the calculations I use because, taking into account random recombination, you can’t do any better than get close.
  • Also, remember, if you’re dealing with double relationships, meaning double first cousins, you’ll need to take that into consideration, too.
  • If endogamy is involved, your matches will be higher yet, and you should use the highest calculations below because you need to be on the highest end of the range – and that may still not be high enough.

In these Easy-Peasy calculations, you calculate for the lowest, then the highest, and that’s your range. Please note that these are options, and truly, one size does not fit all.

  1. For the lowest end of the range, simply use the average of the highest relationship. In this case, that would be 1C, which is 866 cM. Remember that you may not share DNA with third cousins. 10% of third cousins don’t share any DNA, and 50% of fourth cousins don’t.
  2. For the highest end of the range, find the second relationship in the Shared cM chart, divide the average by half, and add to the value from the closest relationship. In this case, half of the 3C value of 76 is 38.
  3. Add 38 to 866 for the highest end of the range of 904.
  4. If there’s yet another path to ANY shared ancestor, add half that amount too to calculate the high end of the range – unless it’s 4C or more distant, then don’t add anything.

You can see that this easy-peasy range calculation for pedigree collapse compares very well to the more complex but still easy calculations.

  • Easy-peasy calculation: 866-904
  • Other calculation methods: 850-903
  • For this same relationship combination, Diahan’s statistical calculation was 850 cM.

Back to Genealogy

What’s the short story about how pedigree collapse affects genealogy?

Essentially, in close generations, meaning within a few generations of two first cousins marrying, descendants can expect to inherit and share significantly more DNA of the common ancestors, but not double the amount. As we move further away from those marriages in time, the effect becomes less pronounced and more difficult to detect. You can see that effect when calculating multiple paths where at the fourth cousin level, or more distant, those cousins have a 50% or greater possibility of not sharing DNA segments.

Of course, with multiple paths to the same ancestor, your chances of inheriting at least some segments from the common ancestor are increased because their DNA descends through multiple paths.

Today, close marriages are much less common and have been for several generations in many cultures, so we see fewer instances where pedigree collapse makes a significant difference.

Within a population or group of people, if pedigree collapse becomes common, meaning that there are multiple paths leading back to common ancestors, like our three-path example, DNA segments from the common ancestors are found among many people. Significant pedigree collapse becomes endogamy, especially if marriage outside of the group is difficult, impossible, or discouraged.

Normally, pedigree collapse is not recorded in actual records. It’s left to genealogists to discover those connections.

The exception, of course, is those wonderful Catholic parish records where the priest granted dispensations. Sometimes, that’s our only hint to earlier genealogy. In the case of the marriage of Marie-Josesphe LePrince to Jacques Forest, the priest wrote “dispense 3-3 consanguinity,” which tells us that they shared great-grandparents. It also tells us that their grandparents were siblings, that the bride and groom were second cousins, and that their children and descendants inherited an extra dose of DNA from their common great-grandparents.

How does that affect me today? Given that I’m their seventh-generation descendant – probably not at all. Of course, they are Acadian, and the Acadians are highly endogamous, which means I match many Acadians because all Acadians share the DNA of just a few founders, making it almost impossible to track segments to any particular ancestor. If it weren’t for endogamy, I would probably match few, if any, of their descendants.

Now, when you see those Catholic church dispensations or otherwise discover pedigree collapse, you can be really excited, because you understand the effects of pedigree collapse and how to calculate resulting matches! You might, just might, have retained a DNA segment from those ancestors because you inherited segments through multiple paths – increasing the probability that one survived.

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Haplogroups: DNA SNPs Are Breadcrumbs – Follow Their Path

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Recently a reader asked some great questions.

If Y-DNA is unchanged, then why isn’t the Y-DNA of every man the same today? And if it’s not the same, then how do we know that all men descend from Y-Adam? Are the scientists just guessing?

The scientists aren’t guessing, and the recent scientific innovations behind how this works is pretty amazing, so let’s unravel these questions one at a time.

The first thing we need to understand is how Y-DNA is inherited differently from autosomal DNA, and how it mutates.

First, a reminder that:

  • Y-DNA tests the Y chromosome passed from father to son in every generation, unmixed with any DNA of the mother. This article focuses on Y-DNA.
  • Mitochondrial DNA tests the mitochondria passed from mothers to all of their children, but is only passed on by the females, unmixed with the DNA of the father. This article also pertains to mitochondrial SNPS, but we will cover that more specifically later in another article.
  • Autosomal DNA is passed from both parents to their children. Each child inherits half of each parent’s autosomal DNA.

Let’s look at how this works.

Autosomal vs Y-DNA Inheritance

Click on image to enlarge

Autosomal DNA, shown here with the green (male) and pink (female) images, divides in each generation as it’s passed from the parent to their child. Each child inherits half of each parent’s autosomal DNA, meaning chromosomes 1-22. For this discussion, each descendant shown above is a male and has a Y chromosome.

This means that in the first generation, which would be the great-grandfather, about 700,000 locations of his green autosomal DNA are tested for genealogy purposes.

His female partner (pink) also has about 700,000 locations. During recombination, they each contribute about 350,000 SNPs (Single Nucleotide Polymorphisms) of autosomal DNA to their child. Their offspring then has a total of 700,000 SNPs, 350,000 green and 350,000 pink contributed by each parent.

This process is repeated for each child, whether male or female (with the exception of the X chromosome, which is beyond the scope of this article), but each child does not receive exactly the same half of their parents’ autosomal DNA. Recombination is random.

In the four generations shown above, the green autosomal DNA of generation one, the great-grandfather, has been divided and recombined three times. The original 700,000 locations of great-grandfather’s green DNA has now been whittled down to about 87,500 locations of his green DNA.

Y-DNA in the Same Generation

Looking now at the blue Y-DNA at left, the Y-DNA remains the same in each generation with the exception of one mutation approximately every two or three generations.

As you can see in the chart, in the exact same number of generations, the Y-DNA of each male, which he inherited from his father:

  • Never recombines with any DNA from the mother
  • Never divides and gets smaller in subsequent generations
  • Remains essentially unchanged in each generation

The key word here is “essentially.”

Y-DNA

The Y chromosome consists of about 59 million locations or SNPs of DNA. STR tests, Short Tandem Repeats, which are essentially insertions and deletions, test limited numbers of carefully curated markers selected for the fact that they mutate in a genealogically relevant timeframe. These markers are combined in panels of either 67 or 111 marker tests available for purchase at FamilyTreeDNA today, or historically 12, 25, 37, 67, and 111 marker panels. The STR test was the original Y-DNA test for genealogy and is still used as an introductory test or to see if a male matches a specific line, or not.

From the STR tests, in addition to matching, FamilyTreeDNA can reliably predict a relatively high-level haplogroup, or genetic clan, based on the frequency of the combinations of those marker values in specific STR locations.

SNPs are much more reliable than STRs, which tend to be comparatively unstable, mutating at an unreliable rate, and back mutating, which can be very disconcerting for genealogy. We need reliable consistency to be able to assign a male tester to a specific lineage with confidence. We can, however, find genealogically relevant matches that may be quite important, so I never disregard STR tests or testers. STR tests aren’t relevant for deeper history, nor can they reliably discern a specific lineage within a surname. SNP tests can and do.

The Big Y-700 SNP test gives us that and more, along with the earlier Big Y-500 test which scanned about 30 million locations. The Big Y-700 is a significant improvement; men can upgrade from the Big Y-500 or STR tests.

The Big Y-700 test scans about 50 million Y-DNA locations, known as the gold standard region, for all mutations. It reports 700 or more STR markers for matching, but more importantly, it scans for all SNP mutations in those 50 million locations.

All mutations are confirmed by at least five positive repeat scans and are then assigned a haplogroup name if found in two or more men.

Y-DNA Testing

If Y-DNA remained exactly the same, then the Y-DNA of men today would be entirely indistinguishable from each other – essentially all matching humankind’s first common ancestor. With no changes, Y-DNA would not be useful for genealogy. We need inherited mutations to be able to compare men and determine their level of relatedness to each other.

Fortunately, Y-DNA SNPs do mutate. Y-DNA is never divided or combined, so it stays essentially the same except for occasional mutations which are inherited by the following generations.

Using SNP markers scanned in the Big Y test, one new mutation happens on the average of every two or three generations. Of course, that means that sometimes there are no mutations for a few generations, and sometimes there are two mutations between father and son.

What this does, though, very effectively, is provide a trail of SNP mutations – breadcrumbs essentially – that we can use for matching, AND for tracking our mutations, which equate to ancestors, back in time.

Estes Male Breadcrumb Trail

I’ve tested several Estes men of known lineage, so I’m going to use this line as an example of how mutations act as breadcrumbs, allowing us to track our ancestors back in time and across the globe.

Multiple cousins in my Estes line have taken the Big Y-700 test.

My closest male cousin matches two other men on a unique mutation. That SNP has been named haplogroup R-ZS3700.

We know, based on our genealogy, that this mutation occurred in Virginia and is found in the sons of Moses Estes born in 1711.

How do we know that?

We know that because three of Moses’s descendants have tested and all three of those men have the same mutation, R-ZS3700, and none of the sons of Moses’s brothers have that mutation.

I’ve created a chart to illustrate the Estes pedigree chart, and the haplogroups assigned to those men. So, it’s a DNA pedigree chart too. This is exactly what the Big-Y DNA test does for us.

In the red-bordered block of testers, you can see the three men that all have R-ZS3700 (in red), and all are sons of Moses born in 1711. I have not typed the names of all the men in each generation because, for purposes of this illustration, names aren’t important. However, the concept and the fact that we have been able to connect them genealogically, either before or because of Y-DNA testing, is crucial.

Directly above Moses born in 1711, you can see his father Abraham born in 1647, along with Moses’ brothers at right and left; John, Richard, Sylvester, and Elisha whose descendants have taken the Big Y-700 test. Moses’s brothers’ descendants all have haplogroup R-BY490 (in blue), but NOT R-ZS3700. That tells us that the mutation responsible for R-ZS3700 happened between Abraham born in 1647, and Moses born in 1711. Otherwise, Moses’s brothers would have the mutation if his father had the mutation.

Moses’s descendants also have R-BY490, but it’s NOT the last SNP or haplogroup in their lineage. For Moses’s descendants, R-ZS3700 occurred after R-BY490.

You can see haplogroup R-BY490 boxed in blue.

We know that Moses and his father, Abraham, both have haplogroup R-BY490 because all of Abraham’s sons have this haplogroup. Additionally, we know that Abraham’s father, Silvester also had haplogroup R-BY490.

How do we know that?

Abraham’s brother, Richard’s descendant, tested and he has haplogroup R-BY490.

However, Silvester’s father, Robert born in 1555 did NOT have R-BY490, so it formed between him and his son, Silvester.

How do we know that?

Robert’s other son, Robert born in 1603 has a descendant who tested and has haplogroup R-BY482, but does NOT have R-BY490 or R-ZS3700.

All of the other Eates testers also have R-BY482, blocked in green, in addition to R-BY490, so we know that the mutation of R-BY490 developed between Robert born in 1555 and his son, Silvester born in 1600, because his other son’s descendant does not have it.

Looking at only the descent of the haplogroups, in order, we have

  • R-BY482 (green) found in Robert born in 1555 and all of his descendants.
  • R-BY490 (blue) found in Silvester born in 1600 and all of his descendants, but not his brother
  • R-ZS3700 (red) found in Moses born in 1711 and all of his descendants, but not his brothers

If we had Estes men who descend from the two additional documented generations upstream of Robert born in 1555, we might discover when R-BY482 occurred, but to date, we don’t have any additional testers from those lines.

Now that we understand the genesis of these three haplogroups in the Estes lineage, what else can we discover through our haplogroup breadcrumbs?

The Discover Reports

By entering the haplogroup in the Discover tool, either on the public page, here, or clicking on Discover on your personal page at FamilyTreeDNA if you’ve taken the Big-Y test, you will see several reports for your haplogroup.

I strongly suggest reviewing each category, because they cumulatively act as chapters to the book of your haplogroup story, but we’re going to skip directly to the breadcrumbs, which is called the Ancestral Path.

The Ancestral Path begins with your haplogroup in Line 1 then lists the first upstream or parent haplogroup in Line 2. In this case, the haplogroup I entered is R-ZS3700.

You can see the estimated age of the haplogroup, meaning when it formed, at about 1700 CE. Moses Estes who was born in 1711 is the first Estes man to carry haplogroup R-ZS3700, so that’s extremely close.

Line 2, R-BY490 occurred or was born about 1650, and we know that it actually occurred between Robert and Silvester born in 1600, so that’s close too.

Scanning down to Line 3, R-BY482 is estimated to have occurred about 1500 CE, and we know for sure it had occurred by 1555 when Robert was born.

We see the parent haplogroup of R-BY487 on Line 4, dating from about 750 CE. Of course, if more men test, it’s possible that more haplogroups will emerge between BY482 and BY487, forming a new branch. Given the time involved, those men wouldn’t be expected to carry the Estes surname, as surnames hadn’t yet been adopted in that timeframe.

Moving down to Line 9, we see R-ZP18 from 2250 BCE, or about 4250 years ago. Looking at the right column, there’s one ancient sample with that haplogroup. The location of ancient samples anchors haplogroups definitively in a particular location at a specific time.

Haplogroup by haplogroup, step by step, we can follow the breadcrumbs back in time to Y-Adam, the first homo sapiens male known to have descendants today, meaning he’s the MRCA, or most recent common ancestor for all men.

Neanderthals and Denisovans follow, but their Y-DNA is only available through ancient samples. They have no known direct male survivors, but someday, maybe someone will test and their Y-DNA will be found to descend from Neanderthals or Denisovans.

Now that we know when those haplogroups occurred, how did our ancestors get from Africa 232,000 years ago to Kent, England, in the 1400s? What path did they take?

The new Globetrekker tool answers that question.

The Breadcrumb Trail

In Globetrekker, each haplogroup’s location is placed by a combination of testers’ results, their identified earliest known ancestor (EKA) country and location, combined with ancient samples, climatic factors like glaciers and sea levels, and geographic features. You can read about Globetrekker here and here.

To view the Globetrekker tool, you must sign it to an account that has taken the Big Y test. It’s a tool exclusively provided for Big-Y testers.

You can click at the bottom of your Globetrekker map to play the animated video.

Beginning in Africa, our ancestors began their journey with Y-Adam, then migrated through the Near East, South Asia, East Asia, then west through central Asia into Europe. The Estes ancestors crossed the English Channel and migrated around what is now England before settling in Deal, on the east coast.

Clicking on any haplogroup provides a description of that haplogroup and how it was placed in that location.

Enabling the option for ancient DNA shows those locations as well, near the haplogroups they represent when the animation is playing.

Clicking on the shovel icon explains about that particular ancient DNA sample, what is known, and how it relates to the haplogroup it’s connected to by a dotted line on the map.

Pretty cool, huh!!

End to End

As you can see from this example, Big Y results are an end-to-end tool.

We can use the Big Y-700 haplogroups very successfully for recent genealogy – assigning testers to specific lines in a genealogy timeframe. Some haplogroups are so specific that, without additional information, we can place a man in his exact generation, or within a generation or two.

Not shown in my Estes pedigree chart is an adoptee with a different surname, of course. We know that he descends from Moses’s line because he carries haplogroup R-ZS3700, but we are still working on the more recent generations using autosomal DNA to connect him accurately.  If more of Moses’s descendants tested, we could probably place him very specifically. Without the Big Y-700 test, he wouldn’t know his biological surname or that he descends from Moses. That’s a HUGE breakthrough for him.

There’s more about the Estes line to learn, however.

If our Estes cousins tested their brothers, uncles or other Estes males in their line, they would likely receive a more refined haplogroup that’s relevant only to that line.

Using Big-Y test results, we can place men within a couple of generations and identify a common ancestor, even when all men within a haplogroup don’t know their genealogical lineage. Using those same test results, we can follow the breadcrumbs all 50 steps back in time more than 230,000 years to Y-Adam.

End to end, the Big-Y test coupled with breadcrumbs in Discover, Globetrekker, and other amazing tools is absolutely the most informative and powerful test available to male testers for their paternal line genealogy.

These amazing innovations tracking more than 50,000 haplogroups across the globe answer the original questions about how we know.

The more people who take or upgrade to the Big Y-700 test, the more haplogroup branches will be added, and the more refined the breadcrumbs, ages, and maps will become. In other words, there’s still more to learn.

Test if you haven’t, and check back often for new matches and breadcrumbs, aka updates.

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Which DNA Test Should I Buy? And Why?

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Which DNA test should I buy, and why?

I receive questions like this often. As a reminder, I don’t take private clients anymore, which means I don’t provide this type of individual consulting or advice. However, I’m doing the next best thing! In this article, I’m sharing the step-by-step process that I utilize to evaluate these questions so you can use the process too.

It’s important to know what questions to ask and how to evaluate each situation to arrive at the best answer for each person.

Here’s the question I received from someone I’ll call John. I’ve modified the wording slightly and changed the names for privacy.

I’m a male, and my mother was born in Charleston, SC. My maternal grandmother’s maiden name was Jones and a paternal surname was Davis. The family was supposed to have been Black, Dutch, Pennsylvania Dutch, and Scots-Irish…only once was I told I was 3/16 Indian, with Davis being 3/4 and Jones being full Indian.

Do I have enough reasonable information to buy a test, and which one?

Please note that it’s common for questions to arrive without all the information you need to provide a sound answer – so it’s up to you to ask those questions and obtain clarification.

Multiple Questions

There are actually multiple questions here, so let me parse this a bit.

  1. John never mentioned what his testing goal was.
  2. He also never exactly said how the paternal line of Davis was connected, so I’ve made an assumption. For educational purposes, it doesn’t matter because we’re going to walk through the evaluation process, which is the same regardless.
  3. John did not include a tree or a link to a tree, so I created a rudimentary tree to sort through this. I need the visuals and normally just sketch it out on paper quickly.
  4. Does John have enough information to purchase a test?
  5. If so, which test?

There is no “one size fits all” answer, so let’s discuss these one by one.

Easy Answers First

The answer to #4 is easy.

Anyone with any amount of information can purchase a DNA test. Adoptees do it all the time, and they have no prior information.

So, yes, John can purchase a test.

The more difficult question is which test, because that answer depends on John’s goals and whether he’s just looking for some quick information or really wants to delve into genealogy and learn. Neither approach is wrong.

Many people think they want a quick answer –  and then quickly figure out that they really want to know much more about their ancestors.

I wrote an article titled DNA Results – First Glances at Ethnicity and Matching for new testers, here.

Goals

Based on what John said, I’m going to presume his goals are probably:

  • To prove or disprove the family oral history of Black, Dutch, Pennsylvania Dutch (which is actually German,) Scots-Irish, and potentially Native American.
  • John didn’t mention actual genealogy, which would include DNA matches and trees, so we will count that as something John is interested in secondarily. However, he may need genealogy records to reach his primary goal.

If you’re thinking, “The process of answering this seemingly easy question is more complex than I thought,” you’d be right.

Ethnicity in General

It sounds like John is interested in ethnicity testing. Lots of people think that “the answer” will be found there – and sometimes they are right. Often not so much. It depends.

The great news is that John really doesn’t need any information at all to take an autosomal DNA test, and it doesn’t matter if the test-taker is male or female.

To calculate each tester’s ethnicity, every testing company compiles their own reference populations, and John will receive different results at each of the major companies. Each company updates their ethnicity results from time to time as well, and they will change.

Additionally, each company provides different tools for their customers.

The ethnicity results at different companies generally won’t match each other exactly, and sometimes the populations look quite different.

Normally, DNA from a specific ancestor can be found for at least 5 or 6 generations. Of course, that means their DNA, along with the DNA from all of your other ancestors is essentially combined in a communal genetic “pot” of your chromosomes, and the DNA testing company needs to sort it out and analyze your DNA for ethnicity.

DNA descended from ancestors, and their populations, further back in people’s trees may not be discerned at all using autosomal DNA tests.

A much more specific “ethnicity” can be obtained for both the Y-DNA line, which is a direct patrilineal line for men (blue arrow,) and the mitochondrial DNA line (pink arrows,) which is a direct matrilineal line for everyone, using those specific tests.

We will discuss both of those tests after we talk about the autosomal tests available from the four major genealogy DNA testing companies. All of these tools can and should be used together.

Let’s Start with Native American

Let’s evaluate the information that John provided.

John was told that he “was 3/16 Indian, with Davis being 3/4 and Jones being full Indian.”

We need to evaluate this part of his question slightly differently.

I discussed this in the article, Ancestral DNA Percentages – How Much of Them is in You?

First, we need to convert generations to 16ths.

You have two ancestors in your parent’s generation, four in your grandparents, and so forth. You have 16 great-great-grandparents. So, if John was 3/16th Native, then three of his great-great-grandparents would have been fully Native, or an equivalent percentage. In other words, six ancestors in that generation could have been half-Native. Based on what John said, they would have come from his mother’s side of the tree. John is fortunate to have that much information to work with.

He told us enough about his tree that we can evaluate the statement that he might be 3/16ths Native.

Here’s the tree I quickly assembled in a spreadsheet based on John’s information.

His father, at left, is not part of the equation based on the information John provided.

On his mother’s side, John said that Grandfather Davis is supposed to be three-quarters Native, which translates to 12/16ths. Please note that it would be extremely beneficial to find a Y-DNA tester from his Davis line, like one of his mother’s brothers, for example.

John said that his Grandmother Jones is supposed to be 100% Native, so 16/16ths.

Added together, those sum to 28/32, which reduces down to 14/16th or 7/8th for John’s mother.

John would have received half of his autosomal DNA from his mother and half from his non-Native father. That means that if John’s father is 100% non-Native, John would be half of 14/16ths or 7/16ths, so just shy of half Native.

Of course, we know that we don’t always receive exactly 50% of each of our ancestors’ DNA (except for our parents,) but we would expect to see something in the ballpark of 40-45% Native for John if his grandmother was 100% Native and his grandfather was 75%.

Using simple logic here, for John’s grandmother to be 100% Native, she would almost assuredly have been a registered tribal member, and the same if his grandfather was 75% Native. I would think that information would be readily available and well-known to the family – so I doubt that this percentage is accurate. It would be easy to check, though, on various census records during their lifetimes where they would likely have been recorded as “Indian.” They might have been in the special “Indian Census” taken and might be living on a reservation.

It should also be relatively easy to find their parents since all family members were listed every ten years in the US beginning with the 1850 census.

The simple answer is that if John’s grandparents had as much Native as reported, he would be more than 3/16th – so both of these factoids cannot simultaneously be accurate. But that does NOT mean neither is accurate.

John could be 7/8th or 40ish%, 3/16th or 18ish%, or some other percentage. Sometimes, where there is smoke, there is fire. And that seems to be the quandary John is seeking to resolve.

Would  Ethnicity/Population Tests Show This Much Native?

Any of the four major testing companies would show Native for someone whose percentage would be in the 40% or 18% ballpark.

The easiest ethnicities to tell apart from one another are continental-level populations. John also stated that he thinks he may also have Black ancestry, plus Dutch, Pennsylvania Dutch (German), and Scots-Irish. It’s certainly possible to verify that using genealogy, but what can DNA testing alone tell us?

How far back can we expect to find ethnicities descending from particular ancestors?

In this table, you can see at each generation how many ancestors you have in that generation, plus the percentage of DNA, on average, you would inherit from each ancestor.

All of the major DNA testing companies can potentially pick up small trace percentages, but they don’t always. Sometimes one company does, and another doesn’t. So, if John has one sixth-generation Native American ancestor, he would carry about 1.56% Native DNA, if any.

  • Sometimes a specific ethnicity is not found because, thanks to random recombination, you didn’t inherit any of that DNA from those ancestors. This is why testing your parents, grandparents, aunts, uncles, and siblings can be very important. They share your same ancestors and may have inherited DNA that you didn’t that’s very relevant to your search.
  • Sometimes it’s not found because the reference populations and algorithms at that testing company aren’t able to detect that population or identify it accurately, especially at trace levels. Every DNA testing company establishes their own reference populations and writes internal, proprietary ethnicity analysis algorithms.
  • Sometimes it’s not found because your ancestor wasn’t Native or from that specific population.
  • Sometimes it’s there, but your population is called something you don’t expect.

For example, you may find Scandinavian when your ancestor was from England or Ireland. The Vikings raided the British Isles, so while some small amount of Scandinavian is not what you expect, that doesn’t mean it‘s wrong. However, if all of your family is from England, it’s not reasonable to have entirely Scandinavian ethnicity results.

It’s also less likely as each generation passes by that the information about their origins gets handed down accurately to following generations. Most non-genealogists don’t know the names of their great-grandparents, let alone where their ancestors were from.

Using a 25-year average generation length, by the 4th generation, shown in the chart above, you have 16 ancestors who lived approximately 100 years before your parents were born, so someplace in the mid-1800s. It’s unlikely for oral history from that time to survive intact. It’s even less likely from a century years earlier, where in the 7th generation, you have 128 total ancestors.

The best way to validate the accuracy of your ethnicity estimates is by researching your genealogy. Of course, you need to take an ethnicity test, or two, in order to have results to validate.

Ethnicity has a lot more to offer than just percentages.

Best Autosomal Tests for Native Ethnicity

Based on my experience with people who have confirmed Native ancestry, the two best tests to detect Native American ethnicity, especially in smaller percentages, are both FamilyTreeDNA and 23andMe.

Click images to enlarge

In addition to percentages, both 23andMe and FamilyTreeDNA provide chromosome painting for ethnicity, along with segment information in download files. In other words, they literally paint your ethnicity results on your chromosomes.

They then provide you with a file with the “addresses” of those ethnicities on your chromosomes, which means you can figure out which ancestors contributed those ethnicity segments.

The person in the example above, a tester at FamilyTreeDNA, is highly admixed with ancestors from European regions, African regions and Native people from South America.

Trace amounts of Native American with a majority of European heritage would appear more like this.

You can use this information to paint your chromosome segments at DNAPainter, along with your matching segments to other testers where you can identify your common ancestors. This is why providing trees is critically important – DNA plus ancestor identification with our matches is how we confirm our ancestry.

This combination allows you to identify which Native (or another ethnicity) segments descended from which ancestors. I was able to determine which ancestor provided that pink Native American segment on chromosome 1 on my mother’s side.

I’ve provided instructions for painting ethnicity segments to identify their origins in specific ancestors, here.

Autosomal and Genealogy

You may have noticed that we’ve now drifted into the genealogy realm of autosomal DNA testing. Ethnicity is nice, but if you want to know who those segments came from, you’ll need:

  • Autosomal test matching to other people
  • To identify your common ancestor with as many matches as you can
  • To match at a company who provides you with segment information for each match
  • To work with DNAPainter, which is very easy

The great news is that you can do all of that using the autosomal tests you took for ethnicity, except at Ancestry who does not provide segment information.

Best Autosomal Test for Matching Other Testers

The best autosomal test for matching may be different for everyone. Let’s look at some of the differentiators and considerations.

If you’re basing a testing recommendation solely on database size, which will probably correlate to more matches, then the DNA testing vendors fall into this order:

If you’re basing that recommendation on the BEST, generally meaning the closest matches for you, there’s no way of knowing ahead of time. At each of the four DNA testing companies, I have very good matches who have not tested elsewhere. If I weren’t in all four databases, I would have missed many valuable matches.

If you’re basing that recommendation on which vendor began testing earliest, meaning they have many tests from people who are now deceased, so you won’t find their autosomal tests in other databases that don’t accept uploads, the recommended testing company order would be:

If you’re basing that recommendation on matches to people who live in other countries, the order would be:

Ancestry and 23andMe are very distant third/fourth because they did not sell widely outside the US initially and still don’t sell in as many countries as the others, meaning their testers’ geography is more limited. However, Ancestry is also prevalent in the UK.

If you’re basing that recommendation on segment information and advanced tools that allow you to triangulate and confirm your genetic link to specific ancestors, the order would be:

Ancestry does NOT provide any segment information.

If you’re basing that recommendation on unique tools provided by each vendor, every vendor has something very beneficial that the others don’t.

In other words, there’s really no clear-cut answer for which single autosomal DNA test to order. The real answer is to be sure you’re fishing in all the ponds. The fish are not the same. Unique people test at each of those companies daily who will never be found in the other databases.

Test at or upload your DNA to all four DNA testing companies, plus GEDmatch. Step-by-step instructions for downloading your raw data file and uploading it to the DNA testing companies who accept uploads can be found, here.

Test or Upload

Not all testing companies accept uploads of raw autosomal DNA data files from other companies. The good news is that some do, and it’s free to upload and receive matches.

Two major DNA testing companies DO NOT accept uploads from other companies. In other words, you have to test at that company:

Two testing companies DO accept uploads from the other three companies. Uploads and matching are free, and advanced features can be unlocked very cost effectively.

  • FamilyTreeDNA – free matching and $19 unlock for advanced features
  • MyHeritage – free matching and $29 unlock.for advanced features

I recommend testing at both 23andMe and Ancestry and uploading one of those files to both FamilyTreeDNA and MyHeritage, then purchasing the respective unlocks.

GEDmatch

GEDmatch is a third-party matching site, not a DNA testing company. Consider uploading to GEDmatch because you may find matches from Ancestry who have uploaded to GEDmatch, giving you access to matching segment information.

Other Types of DNA

John provided additional information that may prove to be VERY useful. Both Y-DNA and mitochondrial DNA can be tested as well and may prove to be more useful than autosomal to positively identify the origins of those two specific lines.

Let’s assume that John takes an autosomal test and discovers that indeed, the 3/16th Native estimate was close. 3/16th equates to about 18% Native which would mean that three of his 16 great-great-grandparents were Native.

John told us that his Grandmother Jones was supposed to be 100% Native.

At the great-great-grandparent level, John has 16 ancestors, so eight on his mother’s side, four from maternal grandmother Jones and four from his maternal grandfather Davis.

John carries the mitochondrial DNA of his mother (red boxes and arrows,) and her mother, through a direct line of females back in time. John also carries the Y-DNA of his father (dark blue box, at left above, and blue arrows below.)

Unlike autosomal DNA which is admixed in every generation, mitochondrial DNA (red arrows) is inherited from that direct matrilineal line ONLY and never combines with the DNA of the father. Mothers give their mitochondrial DNA to both sexes of their children, but men never contribute their mitochondrial DNA to offspring. Everyone has their mother’s mitochondrial DNA.

Because it never recombines with DNA from the father, so is never “watered down,” we can “see” much further back in time, even though we can’t yet identify those ancestors.

However, more importantly, in this situation, John can test his own mitochondrial DNA that he inherited from his mother, who inherited it from her mother, to view her direct matrilineal line.

John’s mitochondrial DNA haplogroup that will be assigned during testing tells us unquestionably whether or not his direct matrilineal ancestor was Native on her mother’s line, or not. If not, it may well tell us where that specific line originated.

You can view the countries around the world where Y-DNA haplogroups are found, here, and mitochondrial haplogroups, here.

If John’s mitochondrial DNA haplogroup is Native, that confirms that one specific line is Native. If he can find other testers in his various lines to test either their Y-DNA or mitochondrial DNA, John can determine if other ancestors were Native too. If not, those tests will reveal the origins of that line, separate from the rest of his genealogical lines.

Although John didn’t mention his father’s line, if he takes a Y-DNA test, especially at the Big Y-700 level, that will also reveal the origins of his direct paternal line. Y-DNA doesn’t combine with the other parent’s DNA either, so it reaches far back in time too.

Y-DNA and mitochondrial DNA tests are laser-focused on one line each, and only one line. You don’t have to try to sort it out of the ethnicity “pot,” wondering which ancestor was or was not Native.

My Recommendation

When putting together a testing strategy, I recommend taking advantage of free uploads and inexpensive unlocks when possible.

  • To confirm Native American ancestry via ethnicity testing, I recommend testing at 23andMe and uploading to FamilyTreeDNA, then purchasing the $19 unlock. The free upload and $19 unlock are less expensive than testing there directly.
  • For matching, I recommend testing at Ancestry and uploading to MyHeritage, then unlocking the MyHeritage advanced features for $29, which is less expensive than retesting. Ancestry does not provide segment information, but MyHeritage (and the others) do.

At this point, John will have taken two DNA tests, but is now in all four databases, plus GEDmatch if he uploads there.

  • For genealogy research on John’s lines to determine whether or not his mother’s lines were Native, I recommend an Ancestry and a MyHeritage records subscription, plus using WikiTree, which is free.
  • To determine if John’s mother’s direct matrilineal female line was Native, I recommend that John order the mitochondrial DNA test at FamilyTreeDNA.
  • When ordering multiple tests, or uploading at FamilyTreeDNA, be sure to upload/order all of one person’s tests on the same DNA kit so that those results can be used in combination with each other.

Both males and females can take autosomal and mitochondrial DNA tests.

  • To discover what he doesn’t know about his direct paternal, meaning John’s surname line – I recommend the Big Y-700 test at FamilyTreeDNA.

Only males can take a Y-DNA test, so women would need to ask their father, brother, or paternal uncle, for example, to test their direct paternal line.

  • If John can find a male Davis from his mother’s line, I recommend that he purchase the Big Y-700 test at FamilyTreeDNA for that person, or check to see if someone from his Davis line may have already tested by viewing the Davis DNA Project. Like with mitochondrial DNA, the Y-DNA haplogroup will tell John the origins of his direct Davis male ancestor – plus matching of course. He will be able to determine if they were Native, and if not, discover the origins of the Davis line.
  • For assigning segments to ancestors and triangulating to confirm descent from a common ancestor, I recommend 23andMe, MyHeritage, FamilyTreeDNA and GEDmatch, paired with DNAPainter as a tool.

Shopping and Research List

Here are the tests and links recommended above:

More Than He Asked

I realize this answer is way more than John expected or even knew to ask. That’s because there is often no “one” or “one best” answer. There are many ways to approach the question after the goal is defined, and the first “answer” received may be a bit out of context.

For example, let’s say John has 2% Native ancestry and took a test at a vendor who didn’t detect it. John would believe he had none. But a different vendor might find that 2%. If it’s on his mother’s direct matrilineal line, mitochondrial DNA testing will confirm, or refute Native, beyond any doubt, regardless of autosomal ethnicity results – but only for that specific ancestral line.

Autosomal DNA can suggest Native across all your DNA, but Y-DNA and mitochondrial DNA confirm it for each individual ancestor.

Even when autosomal testing does NOT show Native American, or African, for example, it’s certainly possible that it’s just too far back in time or has not been passed down during random recombination, but either Y-DNA or mitochondrial DNA will unquestionably confirm (or refute) the ancestry in question if the right person is tested.

This is exactly why I attempt to find a cousin who descends appropriately from every ancestor and provide testing scholarships. It’s important to obtain Y-DNA and mitochondrial DNA information for each ancestor.

Which Test Should I Order?

What steps will help you decide which test or tests to take?

  1. Define your testing goal.
  2. Determine if your Y-DNA or mitochondrial DNA will help answer the question.
  3. Determine if you need to find ancestors another generation or two back in time to get the most benefit from DNA testing. In our example, if John discovered that both of his grandparents were enrolled tribal members, that’s huge, and the tribe might have additional information about his family.
  4. Subscribe to Ancestry and MyHeritage records collections as appropriate to perform genealogical research. Additional information not only provides context for your family, it also provides you with the ability to confirm or better understand your ethnicity results.
  5. Extend your tree so that you can obtain the best results from the three vendors who support trees; Ancestry, FamilyTreeDNA, and MyHeritage. All three use trees combined with DNA tests to provide you with additional information.
  6. Order 23andMe and Ancestry autosomal DNA tests.
  7. Either test at or upload one of those tests to MyHeritage, FamilyTreeDNA, and GEDmatch.
  8. If a male, order the Big Y-700 DNA test. Or, find a male from your ancestral line who has taken or will take that test. I always offer a testing scholarship and, of course, share the exciting results!
  9. Order a mitochondrial DNA test for yourself and for appropriately descended family members to represent other ancestors. Remember that your father (and his siblings) all carry your paternal grandmother’s mitochondrial DNA. That’s often a good place to start after testing your own DNA.
  10. If your parents or grandparents are alive, or aunts and uncles, test their autosomal DNA too. They are (at least) one generation closer to your ancestors than you are and will carry more of your ancestors’ DNA.
  11. Your siblings will carry some of your ancestors’ DNA that you do not, so test them too if both of your parents aren’t available for testing.

Enjoy!!!

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