WikiTree Connections, King Charles III, and DNA

By Copyright House of Lords 2022 / Photography by Annabel Moeller, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=117865820

I’m not a royal-watcher, but you’d pretty much have to be dead to not be aware that King Charles III is being crowned this Saturday, May 6th.

Have you wondered if you’re related to Charles? Or someone else?

It’s easy to find out on WikiTree.

Go to King Charles’s profile, here.

Notice that under “DNA Connections,” a WikiTree user has entered the Y-DNA of the line of King Charles via an academic sample uploaded to mitoYDNA. That’s interesting!

Tsar Romanov and King Charles III both descend from a common ancestor and are first cousins twice removed (1C2R.) You can also see more about Nicholas Romanov II in the FamilyTreeDNA Discover tool under haplogroup R-M269, in Notable Connections.

Under WikiTree DNA Connections, I notice no one has entered King Charles’s mitochondrial DNA information. Of course, King Charles inherited his mtDNA from his mother, Queen Elizabeth II.

If you know of anyone who carries Queen Elizabeth’s mitochondrial DNA through her direct matrilineal ancestors, by all means, enter this information. If you don’t know how, you can click on help at the bottom of the page or click here. WikiTree has lots of truly helpful volunteers.

You can also enter your information if you’ve taken an autosomal, Y-DNA, or mitochondrial DNA test and are descended appropriately from the person represented in the profile.

Here’s an example from my ancestor, Phebe Cole’s profile. I entered where I tested, and my GEDmatch number.

You can add your DNA test information by clicking on the “Add” button in the top header, then DNA Test Information here.

WikiTree DNA Benefits

WikiTree is a wonderful place to:

  • Upload your DNA to the relevant profile, where it will be populated up the tree appropriately
  • Obtain DNA information, including haplogroups, about your ancestors
  • Discover cousins who descend from that ancestor and who have tested their DNA
  • Discover cousins who may not have tested yet, but might be willing

I use WikiTree regularly to fish for Y and mitochondrial DNA information about my ancestors and to see if I match cousins listed as descendants of a common ancestor.

WikiTree works in the opposite direction from the DNA testing vendors.

At the testing vendors, you find the match and then need to determine how they are related. At WikiTree, you check your ancestor and will find a list of cousins who descend from that ancestor and who have DNA tested. You already know at least one way that each person is related to you. Finding cousin matches by ancestor is part of my triangulation process.

Are You Related?

No known DNA testers or don’t match – no problem.

You can determine whether or not you’re genealogically related to any individual on Wikitree.

Just sign in to your account, and select the profile of the person you want to check.

Scroll very near the bottom or do a browser search for the words “your connection.”

Just click on “Your connection” or “Your genealogical relationship.”

Collaborate is Key

WikiTree is crowd-sourced, so be sure to verify your connection pathway results. If the path isn’t accurate, you can correct the inaccurate person or connection. We are all doing the genealogy community a HUGE favor by ensuring this collaborative tree is accurate.

If you’re unsure about a connection, check the sources and evidence for each generation. If you need information, contact the profile manager.

Add a comment, ask a question, add an image, or provide additional information and sources on any profile.

Ancestral Legacy

I regularly update my ancestors’ profiles with additional information when it becomes available. I appreciate everything others have shared with me over the years, and I want to be sure the information about my ancestors is as accurate as possible.

I don’t know about you, but I’m in this for the long game – for posterity. Leaving as much accurate information, including Y and mitochondrial DNA, is the very least I can do for my ancestors. After all, we wouldn’t be here without them.

So, are you related to King Charles? Is your distant cousin being crowned on Saturday?

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What Is a Sibling Anyway? Full, Half, Three-Quarters, Step, Adopted, Donor-Conceived & Twins

I’ve seen the term sibling used many different ways, sometimes incorrectly.

When referring to their own siblings, people usually use the term brother or sister, regardless of whether they are talking about a full, half or step-sibling. It’s a term of heart or description. It’s often genealogists who are focused on which type of sibling. As far as I’m concerned, my brother is my brother, regardless of which type of brother. But in terms of genetics, and genealogy, there’s a huge difference. How we feel about our sibling(s) and how we are biologically related are two different things.

Let’s cover the various types of siblingship and how to determine which type is which.

  • Full Siblings – Share both parents
  • Half-Siblings – Share only one parent
  • Three-Quarter Siblings – It’s complicated
  • Adopted Siblings
  • Donor-Conceived
  • Step-Siblings – Share no biological parent
  • Twins – Fraternal and Identical

Full Siblings

Full siblings share both parents and share approximately 50% of their DNA with each other.

You can tell if you are full siblings with a match in various ways.

  1. You share the same fairly close matches on both parents’ sides. For example, aunts or uncles or their descendants.

Why do I say close matches? You could share one parent and another more distant relative on the other parent’s side. Matching with close relatives like aunts, uncles or first cousins at the appropriate level is an excellent indicator unless your parents or grandparents are available for testing. If you are comparing to grandparents, be sure to confirm matches to BOTH grandparents on each side.

  1. Full siblings will share in the ballpark of 2600 cM, according to DNAPainter’s Shared cM Tool.

Keep in mind that you can share more or less DNA, hence the range. It’s also worth noting that some people who reported themselves as full siblings in the Shared cM project were probably half siblings and didn’t realize it.

  1. Full siblings will share a significant amount of fully identical regions (FIR) of DNA with each other, meaning they share DNA at the same DNA address from both parents, as illustrated above. Shared DNA with each other inherited from Mom and Dad are blocked in green. The fully identical regions, shared with both parents, are bracketed in purple. You can’t make this determination at FamilyTreeDNA, MyHeritage or Ancestry, but you can at both 23andMe and GEDmatch.

At GEDmatch, the large fully green areas in the chromosome browser “graphics and positions” display indicates full siblings, where DNA is shared from both parents at that location.

I wrote about the details of how to view fully identical regions (FIR) versus half identical regions (HIR) in the article, DNA: In Search of…Full and Half-Siblings.

  1. If your parents/grandparents have tested, you and your full sibling will both match both parents/grandparents. Yes, I know this sounds intuitive, but sometimes it’s easy to miss the obvious.

At FamilyTreeDNA, you can use the matrix tool to see who matches each other in a group of people that you can select. In this case, both siblings are compared to the father, but if the father isn’t available, a close paternal relative could substitute. Remember that all people who are 2nd cousins or closer will match.

  1. At Ancestry, full siblings will be identified as either “brother” or “sister,” while half-siblings do not indicate siblingship. Half-siblings are called “close family” and a range of possible relationships is given. Yes, Ancestry, is looking under the hood at FIR/HIR regions. I have never seen a full sibling misidentified as anything else at Ancestry. Unfortunately, Ancestry does not give customers access to their matching chromosome segment location data.
  2. Y-DNA of males who are full siblings will match but may have some slight differences. Y-DNA alone cannot prove a specific relationship, with very rare exceptions, but can easily disprove a relationship if two males do not match. Y-DNA should be used in conjunction with autosomal DNA for specific relationship prediction when Y-DNA matches.
  3. Y-DNA testing is available only through FamilyTreeDNA, but high-level haplogroup-only estimates are available through 23andMe. Widely divergent haplogroups, such as E versus R, can be considered a confirmed non-match. Different haplogroups within the same base haplogroup, such as R, but obtained from different vendors or different testing levels may still be a match if they test at the Big Y-700 level at FamilyTreeDNA.
  4. Mitochondrial DNA, inherited matrilineally from the mother, will match for full siblings (barring unusual mutations such as heteroplasmies) but cannot be used in relationship verification other than to confirm nonmatches. For both Y-DNA and mitochondrial DNA, it’s possible to have a lineage match that is not the result of a direct parental relationship.
  5. Mitochondrial DNA testing is available only through FamilyTreeDNA, but haplogroup-only estimates are included at 23andMe. Different base haplogroups such as H and J can be considered a non-match.
  6. A difference in ethnicity is NOT a reliable indicator of half versus full siblings.

Half-Siblings

Half-siblings share only one parent, but not both, and usually share about 25% of their DNA with each other.

You will share as much DNA with a half-sibling as you do some other close matches, so it’s not always possible for DNA testing companies to determine the exact relationship.

Referencing the MyHeritage cM Explainer tool, you can see that people who share 1700 cM of DNA could be related in several ways. I wrote about using the cM Explainer tool here.

Hints that you are only half-siblings include:

  1. At testing vendors, including Ancestry, a half-sibling will not be identified as a sibling but as another type of close match.
  2. If your parents or grandparents have tested, you will only match one parent or one set of grandparents or their descendants.
  3. You will not have shared matches on one parent’s side. If you know that specific, close relatives have tested on one parent’s side, and you don’t match them, but your other family members do, that’s a very big hint. Please note that you need more than one reference point, because it’s always possible that the other person has an unknown parentage situation.
  4. At 23andMe, you will not show fully identical regions (FIR).
  5. At GEDmatch, you will show only very minimal FIR.

Scattered, very small green FIR locations are normal based on random recombination. Long runs of green indicate that significant amounts of DNA was inherited from both parents. The example above is from half-siblings.

  1. At FamilyTreeDNA and 23andMe, most men who share a mother will also share an X chromosome match since men only inherit their X chromosome from their mother. However, it is possible for the mother to give one son her entire X chromosome from her father, and give the other son her entire X chromosome from her mother. Therefore, two men who do share a mother but don’t have an X chromosome match could still be siblings. The X is not an entirely reliable relationship predictor. However, if two men share an entire X chromosome match, it’s very likely that they are siblings on their mother’s side, or that their mothers are very close relatives.

Three-Quarter Siblings

This gets a little more complicated.

Three-quarter siblings occur when one parent is the same, and the other parents are siblings to each other.

Let’s use a real-life example.

A couple marries and has children. The mother dies, and the father marries the mother’s sister and has additional children. Those children are actually less than full siblings, but more than half-siblings.

Conversely, a woman has children by two brothers and those children are three-quarter siblings.

These were common situations in earlier times when a man needed a female companion to raise children and women needed a male companion to work on the farm. Neither one could perform both childcare and the chores necessary to earn a living in an agricultural society, and your deceased spouse’s family members were already people you knew. They already loved your children too.

Neither of these situations is historically unusual, but both are very difficult to determine using genetics alone, even in the current generation.

Neither X-DNA nor mitochondrial DNA will be helpful, and Y-DNA will generally not be either.

Unfortunately, three-quarter siblings’ autosomal DNA will fall in the range of both half and full siblings, although not at the bottom of the half-sibling range, nor at the top of the full sibling range – but that leaves a lot of middle ground.

I’ve found it almost impossible to prove this scenario without prior knowledge, and equally as impossible to determine which of multiple brothers is the father unless there is a very strong half-sibling match in addition.

The DNA-Sci blog discusses this phenomenon, but I can’t utilize comparison screenshots according to their terms of service.

Clearly, what we need are more known three-quarter siblings to submit data to be studied in order to (possibly) facilitate easier determination, probably based on the percentage frequency distribution of FIR/HIR segments. Regardless, it’s never going to be 100% without secondary genealogical information.

Three-quarter siblings aren’t very common today, but they do exist. If you suspect something of this nature, really need the answer, and have exhausted all other possibilities, I recommend engaging a very experienced genetic genealogist with experience in this type of situation. However, given the random nature of recombination in humans, we may never be able to confirm using any methodology, with one possible exception.

There’s one possibility using Y-DNA if the parents in question are two brothers. If one brother has a Y-DNA SNP mutation that the other does not have, and this can be verified by testing either the brothers who are father candidates or their other known sons via the Big Y-700 test – the father of the siblings could then be identified by this SNP mutation as well. Yes, it’s a long shot.

Three-quarter sibling situations are very challenging.

Step-siblings, on the other hand, are easy.

Step-Siblings

Step-siblings don’t share either parent, so their DNA will not match to each other unless their parents are somehow related to each other. Please note that this means either of their parents, not just the parents who marry each other.

One child’s parent marries the other child’s parent, resulting in a blended family. The children then become step-siblings to each other.

The terms step-sibling and half-sibling are often used interchangeably, and they are definitely NOT the same.

Adopted Siblings

Adopted siblings may not know they are adopted and believe, until DNA testing, that they are biological siblings.

Sometimes adopted siblings are either half-siblings or are otherwise related to each other but may not be related to either of their adoptive parents. Conversely, adopted siblings, one or both, may be related to one of their adoptive parents.

The same full and half-sibling relationship genetic clues apply to adopted siblings, as well as the tools and techniques in the In Search of Unknown Family series of articles.

Donor-Conceived Siblings

Donor-conceived siblings could be:

  • Half-siblings if the donor is the same father but a different mother.
  • Half-siblings if they share an egg donor but not a father.
  • Full siblings if they are full biological siblings to each other, meaning both donors are the same but not related to the woman into whom the fertilized egg was implanted, nor to her partner, their legal parents.
  • Not biologically related to each other or either legal parent.
  • Biologically related to one or both legal parents when a family member is either an egg or sperm donor.

Did I cover all of the possible scenarios? The essence is that we literally know nothing and should assume nothing.

I have known of situations where the brother (or brothers) of the father was the sperm donor, so the resulting child or children appear to be full or three-quarters siblings to each other. They are related to their legal father who is the mother’s partner. In other words, in this situation, the mother’s husband was infertile, and his brother(s) donated sperm resulting in multiple births. The children from this family who were conceived through different brothers and had very close (half-sibling) matches to their “uncles'” children were very confused until they spoke with their parents about their DNA results.

The same techniques to ascertain relationships would be used with donor-conceived situations. Additionally, if it appears that a biological relationship exists, but it’s not a full or half-sibling relationship, I recommend utilizing other techniques described in the In Search of Unknown Family series.

Twins or Multiple Birth Siblings

Two types of twin or multiple birth scenarios exist outside of assisted fertilization.

Fraternal twins – With fraternal or dizygotic twins, two eggs are fertilized independently by separate sperm. Just view this as one pregnancy with two siblings occupying the same space for the same 9 months of gestation. Fraternal twins can be male, female or one of each sex.

Fraternal twins are simply siblings that happen to gestate together and will match in the same way that full siblings match.

Please note that it’s possible for two of a woman’s eggs to be fertilized at different times during the same ovulation cycle, potentially by different men, resulting in twins who are actually half-siblings.

A difference in ethnicity is NOT a reliable indicator of fraternal or identical twins. Submitting your own DNA twice often results in slightly different ethnicity results.

Identical twins – Identical or monozygotic twins occur when one egg is fertilized by one sperm and then divides into multiple embryos that develop into different children. Those children are genetically identical since they were both developed from the same egg and sperm.

Two of the most famous identical twins are astronauts Mark and Scott Kelly.

Identical twins are the same sex and will look the same because they have the same DNA, except for epigenetic changes, but of course external factors such as haircuts, clothes and weight can make identical twins physically distinguishable from each other.

DNA testing companies will either identify identical twins as “self,” “identical twin” or “parent/child” due to the highest possible shared cM count plus fully matching FIR regions.

For identical twins, checking the FIR versus HIR is a positive identification as indicated above at GEDmatch with completely solid green FIR regions. Do not assume twins that look alike are identical twins.

Siblings

Whoever thought there would be so many kinds of siblings!

If you observe the need to educate about either sibling terminology or DNA identification methodologies, feel free to share this article. When identifying relationships, never assume anything, and verify everything through multiple avenues.

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Who is Peter Johnson’s Ancestor – Peter Jochimsson (Yocum) or Mathias Jönsson alias Hutt? Or Neither? – 52 Ancestors #391

Peter Johnson (c1720-1790) is making me crazy. To refresh your memory, Peter’s early life, including his parents, are shrouded in mystery. I wrote about him here and here. My ancestor is Dorcas Johnson who married Jacob Dobkins. I strongly believe Dorcas to be Peter Johnson’s daughter, for a myriad of reasons, supported by evidence of various types, including paper-trail and genetic, but I’m still seeking that elusive nail in the coffin – pardon the pun. I wrote about Dorcas here and here.

I’m comfortable with assigning Peter Johnson as Dorcas’s father, although I’d love just one conclusive piece of proof. However, Peter’s parents are another matter entirely and one very tough nut.

I’ve been digging like a dog with a bone, and so far, I’ve unearthed conflicting evidence. So now I have two bones and no idea which one is accurate. Wasn’t counting on that – but it sure makes for an interesting article!

I did, however, discover an absolutely WONDERFUL book in Salt Lake City recently. My husband scanned the entire book for me. Let’s start with the 1693 Census of the Swedes on the Delaware.

1693 Census of the Swedes on the Delaware

According to the 1693 Census of the Swedes on the Delaware authored in 1993 and published by Peter Stebbins Craig, J.D., between 1637 and 1655, Sweden equipped thirteen passenger voyages for the South Delaware River, with about 800 prospective settlers. Eleven ships with 600 passengers actually arrived.

The first ship deposited 24 men at Fort Christina, now Wilmington, Delaware. The second and third expeditions brought families. In 1644, Sweden and Denmark were at war, so immigration was suspended until 1647.

In 1651, the Dutch erected a fortified town and fort Casimir at present day New Castle, and the Swedes were disgusted. Several returned to Sweden and others left for neighboring Maryland.

In 1653, 22 Swedes presented a petition to the Swedish Governor Johan Printz, complaining of his aristocratic rule. One Peeter Jochim and one Claes Johansson were among the petitioners. The descendants of Claes, according to Peter Craig, use the Johnson surname in Pennsylvania, and Classon in Delaware and Maryland. Nothing confusing here!

Printz accused the petitioners of mutiny and returned in a huff to Sweden, but a new governor was soon dispatched, along with more settlers. Sailing into the Delaware River, the new Governor, Johan Rising, demanded that the Dutch Fort Casimir surrender – which it did because it had no gunpowder.

The Dutch at Fort Trinity (Fort Casimir, now New Castle) returned north to New Netherlands, but more Swedes moved to Maryland. You can read about Fort Trinity/Fort Casimir archaeology excavations, here.

Craig estimates that about 300 people, including wives and children, remained in New Sweden in 1655 when the Dutch governor Peter Stuyvesant sailed up the Delaware with 7 armed ships and 317 soldiers. The 50 Swedish solders were divided between two fortresses. Both Fort Trinity and Fort Christina (now Wilmington) surrendered on September 15, 1655. You can see a reconstructed Swedish village, here.

At this point, a few Swedes returned to the old country, but most remained, influenced strongly by Peter Stuyvesant’s conciliatory attitude. In a surprise move, he offered to return the colony to Governor Rising, but would retain Fort Casimir (New Castle). Governor Rising declined and left, but Stuyvesant made the same offer to the remaining settlers, offering them the opportunity to govern themselves by a court of their own choosing, continue their religion, have their own militia, continue trading with the Indians and retain their land. In return, they had to pledge loyalty to New Netherlands and Stuyvesant reserved the right to approve their officers. That seemed like a pretty good deal, all things considered, so the Swedes accepted, although they remained stubbornly independent.

Another voyage was already underway though, and in March of 1656, an additional 106 people arrived from the province of Varmland, Sweden, sailing out of Gothenburg.

The new “Swedish Nation” was formed in August 1656, with two courts. One was “Upland,” north of New Castle, and the other functioned on the other side of the Cristina River. The Delaware River was the highway and transportation was primarily by dugout canoe, exactly like the Native people. Hunting was achieved using Native paths. Some farming was undertaken, but mostly, only enough to feed families.

By 1680, life was changing for the Swedish families along the Delaware and many Englishmen were settling in the region. In 1681, William Penn received his charter for Pennsylvania, quickly followed by 23 ships from England carrying his Quaker followers. The three “lower counties” of Pennsylvania were present-day Delaware. By 1682, no longer holding a majority, the Swedish courts were no longer in session.

Penn was very complimentary of the Swedes, said they were welcoming and helpful to the English, got along very well with the Native people, and “strong of body…they have fine children, and almost every house full; rare to find one of them without 3 or 4 boys and as many girls; some six, seven and eight sons.”

By this time, given that 40+ years had elapsed since the first Swedes settled in New Sweden, the third generation was beginning – grandchildren of those original settlers were being born.

One of their English neighbors described the Swedes as ingenious, speaking English, Swedish, Finnish, Dutch and Indian. He described their efficiency, stating that one man could cut down a tree, two would quickly rend the tree into planks using only an ax and wooden wedges. No iron. The women spun linen and wove it into clothe and then made clothes. Swedish families ate rye instead of white bread.

The Swedes introduced log cabins to the colony – structures that would sustain pioneers on the ever-westward-moving frontiers for centuries to come.

The Nothnagle cabin,above, in Gibbstown, NJ, built in 1638 (attached to a 1738 structure) is reputed to be the oldest house in New Jersey.

The cabin is a few miles downstream from present-day Philadelphia, across the river from Tinicum Island, about four miles northeast of Raccoon Creek. This is important because it tell us where Swedes were living at the early date.

After William Penn obtained his charter, he cultivated the friendship of the Swedes to help his English settlers. Among others, Peter Petersson Yocum served as an interpreter, assisting Penn when purchasing land from the Indians.

Unfortunately, the Swedes had already purchased this land, as attested to by depositions from 7 “Antient Swedes” stating that they had purchased and occupied that land since 1638. Eventually, the Swedes provided Penn with the land that would become Philadelphia.

Given that Finland was part of Sweden at this time, no differentiation was made between Swedes and Finns, and both were included. Craig says that if the term Finns was used, it was specifically referring to people who spoke primarily Finnish. People who spoke primarily Swedish were not called Finns. Spelling was not standardized, but neither was it for English. This seems to be a politically challenging time in Scandinavia and results in confusion when looking back and trying to unravel New Sweden’s settlers. Additionally, patronymics, followed by the gradual adoption of surnames make both history and genealogy exceedingly difficult.

In 1693, a “census” of the Swedes was taken, thankfully, and appended to a letter. In 1693, the Swedes were still living below the fall line. In later years, they would settle in tracts granted to them by Penn in Upper Merions Township in Montgomery County, PA and Manatawny, present day Amity Township in Berks County.

Some Swedes settled at Sahakitko, a trading center for the Susquehanna (Minquas) Indians located at the head of the Elk River, now Elkton, Maryland. These traders traveled extensively, hunting, trapping, moving among and trading with various Indian tribes.

Peter Craig spent his retirement visiting these locations, along with archives and universities in Sweden and Finland, ferreting out information about these families. To him, we owe a massive debt of gratitude, because without his work we would be left with only shreds to try to reweave back into a piece of whole cloth. I’ll spare you the details about the mistakes with early 1693 census publications, but suffice it to say that Craig located and reassembled the information. The order of recording is important as well and provided information about where the families lived. The area was called “New Sweden in Pennsylvania on the Delaware River” and in 1693, the number of people in each household was recorded.

By 1693, not everyone was Swedish or Finnish. Dutch, English and German immigrants had intermarried with the Swedish colonists. Conversely, some of the Swedes were found in Maryland and no longer associated with the Swedish churches. Both of the Swedish churches were without pastors and had requested replacements. A 1697 list of parishioners includes people not listed in 1693 and a population estimate of about 1200.

The total 1693 census was 972 individuals, and within the Swedes community, our Peter Johnson’s ancestor is found – someplace.

Peter Craig listed the Swedes along with the number of souls shown in the census, but due to the changing nature of patronymics, it’s very difficult, without additional information to move further than this.

Thankfully, in the remainder of the book, Craig fleshed out each family, as best he could based on documents retrieved from many locations.

By now, you’re probably wondering why I’ve provided all this background.

Peter Johnson (c1720-1790)

I wrote about “my” Peter Johnson, here and here. We know some things, unquestionably, about Peter Johnson (c1720-1790.)

There is absolutely NO question that Peter Johnson’s descendants are related to the descendants of BOTH Jacob Dobkins who married Dorcas (Darkus) Johnson and Evan Dobkins who married Margaret Johnson.

Three distinct types of genetic evidence come into play.

Genetic Evidence

The mitochondrial DNA descendants of both Dorcas Johnson and Margaret Johnson match each other, confirming that they indeed descend from a common maternal ancestor. Mitochondrial DNA can’t prove actual parentage, but it can certainly rule it out. An exact match is strong evidence. Multiple pieces of evidence point to Darcus/Dorcas and Margaret being sisters. I wrote about this family and their challenges, here.

Even stronger evidence would be to find a mitochondrial DNA descendant of Peter Johnson’s wife, reportedly Mary Polly Philips, through another daughter, descending through all females to the current generation which can be male or female. If the descendant of Mary’s other daughter through all females to the current generation, which can be male, matches both Dorcas and Margaret’s descendants’ mitochondrial DNA, we’ve added another very important piece of evidence that Dorcas and Margaret are daughters of Peter Johnson and his wife. I’m offering a fully paid DNA testing scholarship for a qualifying person.

Using autosomal DNA, descendants of Peter Johnson through multiple other children match dozens of people descended from both Dobkins/Johnson couples.

Click to enlarge

Here’s one example using Ancestry’s ThruLines. How could I match descendants of six of Peter’s other children if I wasn’t descended through Peter or his ancestral line? By ancestral line, I mean that this same phenomenon could happen if I was descended from, say, Peter’s sibling.

Let’s look at another example from the perspective of someone descended from one of Peter Johnson’s other children.

Click to enlarge

This confirmed descendant of Peter Johnson through son James matches several descendants through Peter’s other children, plus 4 through Dorcas Johnson and Jacob Dobkins, plus 21 through Margaret Johnson and Evan Dobkins. How could this person who is descended through Peter’s son James match 25 people descended through Dorcas and Margaret who married the Dobkins boys if Dorcas and Margaret weren’t Peter’s daughters or blood relatives?

Jacob Dobkins and Evan Dobkins are confirmed brothers through John Dobkins and wife Elizabeth, and Dorcas Johnson and Margaret Johnson are believed to be sisters. The Bible of Peter Johnson’s son, Solomon, records two of his sisters marrying Dobkins men. It’s important to note that this record comes from descendants of Peter, through another branch of Peter Johnson’s family, and not from descendants of those two Dobkins/Johnson couples.

A third piece of genetic evidence is the Y-DNA of Peter Johnson.

Several men who descend from Peter and other Johnson males have tested and match each other, including three Big Y-700 testers.

I’ve spent an incredible amount of time recently evaluating Y-DNA and autosomal DNA matches, from tests taken by both Johnson and Yokum testers, or similarly spelled surnames. Some men have completely different Y-DNA, but claim to descend from the same lines. Clearly, we have conflicting evidence to resolve.

Another piece of information of which I’m confident is that our Peter Johnson’s ancestors were indeed Swedish, and I agree with Eric and other Johnson researchers who believe Peter descended from one of the founders of the early Swedish Colony along the Delaware River in the 1600s. Now you know exactly why I’ve shared this information from Peter Craig’s book.

Before we review additional DNA information, I’d like to continue with information about both the Johnson and Yocum lines, extracted from Peter’s comprehensive book. I’ve provided map locations which will aid with locations and proximity.

Peter Petersson Yocum

Page 25-26: Peter Yocum was a member of the Wicaco church when on the last day of May in 1693, 26 members of the Swedish congregation gathered at the log church to sign the letter to Sweden requesting new ministers.

The church faced the Delaware River at the present location of Gloria Dei (Old Swedes) Church in Philadelphia and had originally been built in 1677 to serve the Swedes living above the Schuylkill River, with the 1646 church at Tinicum Island continuing to serve members located between the Schuylkill and Marcus Hook.

When Tinicum Island passed out of Swedish ownership in 1683, the church at Tinicum was abandoned. By 1693, the Wicaco congregation embraced 102 Swedish households extending from Neshaminy Creek in Bucks County to Marcus Hook, on the Pennsylvania side of the Delaware, and from Pennsauken Creek in Burlington County to the southern boundary of Gloucester County (Oldmans Creek) on the New Jersey side of the river.

Identification of the 554 Swedish church members living within this area is facilitated by the fact that in 1697 the new Wicaco minister, Andreas Rudman, made a house-by-house enumeration of his congregation, which was later copied and preserved. This chapter focused on the first 37 Wicaco households listed in the 1693 census. The household’s location is shown as evidenced by contemporary land records. Additionally, the value or size of each property is shown in pounds or acres as reported in contemporary tax records.

Page 43, person #35* – Peter Petersson Yocum (Aronameck, 100 pounds): Peter was born in New Sweden about 1652. His father, a soldier named Peter Jochimsson from Schlesvig in Holsstein, had arrived in New Sweden on the Swan in 1643 and became a freeman on November 1, 1652. He was one of the 22 freemen signing the 1653 complaint against Governor Printz. In the summer of 1654, Governor Rising chose him to go to New Amsterdam (now Manhattan in New York City) on a diplomatic and spying mission to deliver a letter. Peter Jochimsson died there. Thereafter, his widow, aged 20 with 2 children at his death, known in 1693 as Ella Steelman, (#54), married Hans Mansson who raised Peter Petersson as his own son. Peter Petersson who adopted the surname Jochim (Yocum) about 1675 married Judith, daughter of Jonas Nilsson (322), and had seven children by May of 1693: Peter born 1677, Mans born 1678, Catharine born 1681, Charles born 1682, Sven born 1685, Julia born 1687, and Jonas born in 1689. Peter Petersson Yocum who had been prominent as an Indian trader and as an Indian interpreter for William Penn died in 1702. His widow thereafter moved with her younger sons to Manatawny (Berks County) where she died in 1727. Their descendants used the surname of Yocum or Yocom.

Craig provides the following footnote: Subsequent children: Anders (Craig’s ancestor) born 1693, John born 1696 and Maria. For additional references to Peter’s father, Peter Jochimson, see Huygen, 63, MGB 23, 78; Rising 93, 107, 111, 112, 163, 165, 183, 195. Peter Jochimsson also had a daughter, Elisabeth born about 1654 who married an English soldier, John Ogle. Yocum, 270, n24; Stille, 147-149.

*Please note that Craig’s numbers, such as #35, reference their position on the 1693 census. Peter is recorded as “Petter Yocomb – 9” meaning 9 people in the family as of that date.

Mathias Hutt Jönsson

Raccoon Creek is about two miles north of Oldmans Creek, shown at the top of the map below.

Mathias Jönsson alias Hutt, living someplace on or near Salem Creek in New Jersey (upper red arrow,) fell under the Crane Hook Congregation across the river on the Pennsylvania side in what is now Wilmington.

Click to enlarge

His son, Oliver, and possibly other sons would eventually live in the Indian trading village of Sahakitko at Head of Elk, now Elkton, Maryland.

Craig tells us that the migration of families from New Castle County across the Delaware River to Penn’s Neck in Salem County began in 1671. By the time of the 1693 census, the Crane Hook Church counted 130 members living on “the other side” of the Delaware.

Penn’s Neck was bounded by the Delaware River on the west and extended from Oldmans Creek on the north to Salem Creek on the south. The eastern boundary was also Salem Creek to its northern bend, then extending overland northeast to Oldman’s Creek. It derived its name from the fact that William Penn, proprietor of Pennsylvania, also acquired proprietorship of this area in 1683 from its first English claimant, John Fenwick. The church census identifies the households in Penn’s Neck beginning at its northernmost settlement.

Page 104, footnote 58 on Olle Thomasson #113 – partially reads: On August 25, 1685, “Wooley Thomason of Pennsylvania” (which then included Delaware,) and Wooley Peterson of Boughttown (#80) were named co-administrators of the estate of “Matthias Unson” of Salem Creek in Penn’s Neck. NJA, 23:474. The deceased whose full name was Matthias Jönsson alias Hutt, directed that his son Michael should live with Wooley Thompson. Salem Co. wills, 2:16-17, NJA 23:474; 1730 accounting by William Peterson, surviving executor, Salem County probate records 503Q, NJA, 23:263-64.

This next portion loops in another Jönsson family and is confusing. I apologize in advance.

The Jönsson or Halton Family – The probable progenitor of the Halton family was Jons Jönsson, a Finn from Letstigen, Varmland, who was listed in October 1655 as about to go to New Sweden on the Mercurius with his wife and 6 children. Later records disclose the presence of Olle, Peter and Mans Jönsson whose patronymic was later replaced by Halton. Along with Nils Larsson France (see #85), Olle Rawson (#135) and their associated, Olle Jönsson (also known as “Carringa Olle”) was licensed by the New Jersey governor in 1668 to buy Indian lands on the east side of the Delaware River. The subsequent purchase agreement, executed Nov. 15, 1676, conveyed the lands to Hans Hoffman and Peter Jönsson. In 1684, Peter Jönsson moved to Penn’s Neck, Salen County, dying in 1692. He called himself Peter Halton in his will, naming his wife as Mary and his children as Frederick, Andrew and Brita.

Page 79 #78 – Lasse Halton (Raccoon Creek, 100 acres): Born about 1668, Lasse Halton was the eldest son of Olle Jönsson (“Carringa Olle”) and in 1693 was probably residing with his brother Hans and Carl Halton. Lasse later married a daughter of Matthias Jönsson of Penn’s Neck. The names of their children, if any, are uncertain. He moved to Piles Grove, Salem County, around 1707, after selling his Raccoon Creek Plantation to his brother Hans.

The 100 acres occupied by Lasse Halton was taxed to his mother, “Madlen Janson” in 1687. Her name was replaced with his on the 1690 and 1694 tax lists.

The final accounting of the estate of Matthias Jönsson, filed in 1730, showed a payment to Lausy Halton for his wife’s filial portion NJA, 21:263-264. He had picked out his grave site at Raccoon church in 1724. RPN, 27.

Carl (Charles) Halton married Maria, daughter of Matthias Jönsson (NJA, 23:263-64) and following her death, Gunnilla Fransson. Charles Halton died at Penn’s Neck in 1738.

Page 148, #173 Anders Anderson Weinam (150 aces): (The first portion regarding his name omitted.)

It is uncertain whether Anders Andersson Weinam was a son of a settler or New Sweden named Anders or whether he was among the 1663-1664 arrivals under Dutch rule. Anders was fined 50 guilders in the 1669 Long Finn Rebellion. By 1677 he had moved to Crane Hook. In 1679, he joined Matthias Jönsson, Lars Corneliusson (see #174-75) and widow Annika Hendricks (see #176) in obtaining the original 600 acre grant at Chestnut Neck between Parting Creek and Bastowe (sauna) Creek. In 1690 Nicholas Philpot purchased 50 acres from Anders Andersson’s original 150 acres. Meanwhile, in partnership with Peter Bilderback, Anderson acquired a nearby tract of 100 acres from William Penn. In 1697 Anders Weinam pledged 18 shillings for the new church at Christina and in 1699 both Anders Vinam and his wife were assigned pews at Holy Trinity. The will of Anders Andersson of Penn’s Neck, dated July 9, 1719, gave his entire estate to his wife Anna. Her will, proved the following year, made her brother Henery Boasman (Hendrick Batsman), sold heir, which identifies her as the daughter of Joran Joransson Batsman (see #151.) She and Anders had no children. Their household of four probably included two of the children of Matthias Jönsson Hutt.

Matthias Jönsson alias Hutt had been granted a patent for 100 acres at Feren Hook in 1669. Fined in 1675 in the dike rebellion, he remained at that location until 1679 when he moved to Chestnut Neck. When he died in 1685, he left nine orphan children. The two youngest of his sons, Eric and Eskil Jönsson or Johnson, also known as Erik and Eskil Hutton or Hotton, remained in Penn’s Neck and probably were members of Anders Andersson’s household in 1693.

Will – 1684-5 Feb. 14 – Unson, Mathias, of Castiana Neck on Fenwick’s River alias Salem Greek, Salem Tenth, planter; will of. Gives real and personal estate to his nine children, of whom only the following names are given; Woola Matheson, who is to live with Lause Powleson, Michael, the third son, to live with Wooley Thompson, the fourth son, Erick, to live with Andrea Anderson. Witnesses – Peeter Billderbeck and William Wilkinson. Proved August 11, 1685

1730 <no date> – Johnson, Mathias, of Pen’s Neck, Salem Co., yeoman. Account of the estate of £75.9, by the surviving executor, William Peterson, who has paid to Lausey Halton £8.5 in full of his wife’s filial portion, to Mary, wife of Chas. Halton £6 as her portion, to Samuel Walcott and wife Katharine £8.5, the filial portion of Erick Johnson, said Katherine’s former husband, to Oliver Johnson £6.3, to Eskell Johnson £6.3, to Michael Johnson £4.17.6, to Henry Johnson £6.3, Margaret Johnson £6.3, all filial portions. [No will on record or on file.]

Footnote 46 – DYR, 137, NYHM, 20:22; 21:104; NCR, 1:160, 163; NJA, 21:544, 568, 574; will of Matthis Unson of Castiana Neck on Salem Creek, dated Feb 14, 1684/5 and proved May 11 1685, Salem County wills, 2:16, and final accounting of estate of Matthias Johnson by William Peterson, surviving executor, filed 1730, Salem County wills, 503-Q. The eldest son, Olle, later known as Oliver, was to stay with Lars Palsson Kampe (#147), Henrick with Lars’ father Pal Larsson and Michael with Olle Thompson (#113). They all died at Sahakitko (Elkton), Cecil County. See, e.g., MCW, 7:219. Eric was to live with Anders Andersson and Eskil was unassigned. Eric and Eskil Hutton or Hotten both pledged money and contributed labor for the building of Holy Trinity Church and were assigned pews in that church in 1699. Eric as Eric Jansson or Johnson married Catharine Gillijohnson and died at Penn’s Neck in 1719. Eskil as Ezekiel Jansson or Johnson worked on the glebe house for Penn’s Neck church in 1721 and died intestate in Penn’s Neck in 1726. According to the accounting, one daughter married Lars Halton (#78), another, Maria, married Lars Halton’s brother Charles Halton. A third was named Margaret Johnson in the account. The fourth, Catherine Johnson and her newborn child were maintained by Olle (William) Peterson of Gloucester County (#80) for 13 months.

Information for Lars Palsson Kampe (#147) (Sahakitko): This man’s father, Pal Larsson had been granted a patent at Feren Hook in 1668, was fined 100 guilders in the 1669 Long Finn Rebellion and 20 guilders in the 1675 dike rebellion. The will of Paul Larson dated March 7, 1685, witnessed by Olle Palsson and Eskil Andersson, left his “house and lands whereon I now live” to his wife Magdalena for life, then to his daughters – unnamed. He left to his sons Lawrence and Matthias “my land which is now in Elk River, which is 200 acres,” with directions that Lawrence keep and maintain Matthias. On October 20, 1685, Paul sold his 200-acre home plantation at Feren Hook to Justa Andersson and apparently moved to Elk River, Cecil County where his will was proved June 3, 1692. His eldest son, Lars Palsson chose the surname Kampe, warrior in Swedish, as illustrated in this census. In 1693 his household included his wife (name unknown,) their first children and perhaps his brother Matthias. Lars had three children who later moved to Gloucester County: John, Paul and Brigitta Kampe, also written as Camp.

These families were neighbors and eventually, related. Their lives were intertwined and the survival of the colony depended on the cooperation of many.

In Peter Stebbins Craig’s book, 1671 Census of the Delaware, he states that Feren Hook, meaning Pink Hook, appears to have been settled in 1663 by Swedes and Finns arriving from Sweden via Christiania (now Oslo,) Norway, and Amsterdam in the time of d’Hinojossa. Transcription here.

The Quandary

Now, of course, the quandary.

My Johnson cousins Y-DNA matches a few other Johnson men and one Yocum male.

The Yokum male shows his ancestor as Peter Jochimsson born in 1620 and died in 1702. That, of course would be the father of Peter Petersson Yocum.

At first glance, this looks like a slam dunk, meaning our Johnson line is Yocum, descended from Peter Jochimsson, but it isn’t.

Eric Johnson, who is descended from “our” Peter Johnson who was born circa 1720 and died in 1790 in Allegheny County, PA, worked with Dr. Peter Craig before his death who provided Eric with information suggesting that our Peter Johnson is descended from Mathias Jönsson alias Hutt, through his son Oliver (Olle) who had son Peter in 1720 in Cecil County, MD, near Head of Elk, now Elkton.

I found a record in 1740 in Cecil County, MD for 3 Johnson men, Oliver, Simon and Peter, members of the foot company militia under the command of Capt. Zebulon Hollingsworth. Is this “our” Peter as a young man, or a different Peter. I don’t know.

Also in Cecil County, one Peter Johnson’s will is probated in 1747, and we know that our Peter had moved to the border of Pennsylvania and Maryland by 1742, near Hagerstown. Later deeds tie Peter in Allegheny County, PA to the Peter in Franklin Co., PA.

The records for Peter Johnson (c1720-1790) begin in April of 1742 when he obtained land in Lancaster County, PA, the portion that became Cumberland County in 1750, then Franklin County in 1784. If he was born in 1720, he would only have been 22 at the time, which isn’t impossible but young based on the customs of the time. This land was actually on or very near the Maryland/Pennsylvania border, just above Frederick County, MD, close to Hagerstown.

Hence, the suggestion that our Peter Johnson descended from Elkton in Cecil County seems reasonable.

One thing is certain. Our Johnson and Yocum men DO share a common ancestor as confirmed by Big Y-700 DNA testing.

The question is, of course, whether the Yocum male has documentation confirming that he descends from Peter Jochimsson, the father of Peter Petersson Yocum (#35) or if that was an assumption by someone based on the Yocum surname? If not, what type of source information exists and is it conclusive and incontrovertible?

What are the Possibilities?

Unfortunately, we now have some contradictory evidence to resolve.

  • It’s possible that the Yocum male who matches our Johnson line very closely does have solid, confirmed genealogy descending from Peter Jochimsson. If that’s the case, can each successive generation be confirmed? How strong is the evidence?
  • If our Yocum male’s line can be confirmed, then our ancestor is also very likely Peter Jochimsson.

However, there’s a plot twist.

  • There’s another group of about 10 Yocum men who match each other, two of who claim to descend from Peter Jochimsson as well. These men do not match “our Yocum” male, nor do they match any Johnsons. Their haplogroup is in an entirely different branch of the tree.

These groups of men cannot BOTH be directly paternally descended from Peter Jochimsson.

  • It’s possible that our Johnson/Yokum line is indeed descended from Mathias Jönsson alias Hutt. If that’s the case, then someplace, Jönsson became Yokum several generations back in time for at least one male whose descendant tested today, while the rest remained or became Johnson/Johnston.
  • Its not possible for our Johnson line to descend from Mathias Jönsson/Hutt and the Yokum man who matches the Johnson Y-DNA to descend from Peter Jochimsson, unless of course these ancestral men were closely related to each other, sharing a common paternal ancestor.

Peter Jochimsson and Mathias Jönsson/Hutt sharing a common paternal ancestor is certainly not impossible, but in New Sweden, they don’t live very close to each other. Initially, they were about 40 miles distant. So, if they were related, it’s either in the first generation or two, before 1702, or reaches back to the old country. However, that isn’t what the Y-DNA suggests.

Craig says that Mathias Jochimsson came from Schlesvig in Holsstein, the northern portion of Germany that abuts Denmark, and the settlers in Feren Hook were from near Oslo. Of course, that’s not absolute given that Craig never found a specific origin for Mathias Jönsson/Hutt.

We also don’t know when Mathias Johnsson/Hutt arrived, or where he came from. We know for sure a group of settlers arrived in 1656. According to Amandus Johnson in The Swedes on the Delaware 1638-1664, a final group of Finnish families from Sweden landed in Holland in 1664, en route for New Sweden, but it’s unclear whether they were allowed to proceed to the colonies. We know for sure that Mathias Jönsson/Hutt was in Feren Hook by 1669.

It’s worth noting that little is known about Peter Jochimsson, the original settler, aside from his one son, Peter Petersson Yocum and a daughter reported by Craig. He was either unmarried upon arrival and didn’t marry until he gained his freedom in 1652, or he had more children that died, or he had more children that we don’t know about. Craig reports his widow to have been 20 at his death, with two children which opens the possibility that she was a second wife.

It’s also worth noting that we have the other Otto Jönsson “Carringa Olle” who reportedly took the surname Halton. That line also contains a Peter.

The Y DNA

Two Johnson men and the Yocum tester have taken the Big Y-700 test which has a very distinct aging ability. They have the same haplogroup which is shown on the public Discover haplotree, here.

The most recent common ancestor of these men is estimated to have been born about 1750, which would be roughly the generation of our Peter Johnson who was born before 1720 and died in 1790. Given that we don’t know for sure who Peter’s father was, it’s very likely that our Peter Johnson (possibly the son of Oliver) had siblings and uncles, so Johnson becoming phonetically spelled Yocum or vice versa wouldn’t be the least bit surprising in that era, or in the generation(s) prior.

The confidence range and associated dates suggest that the common ancestor of these Johnson/Yokum men was born in New Sweden. If that is accurate, that means that both the Yocum and Johnson testers are either descended from one ancestor in New Sweden, meaning either Peter Jochimsson or Mathias Johnson alias Hutt (assuming the ancestor is one of those two men.) It likely removes the possibility that those two men were related in the old country, especially given that Craig identified Jochimsson’s origins in Schleswig-Holsstein and suggests that Mathias Jönsson/Hutt may have originated near Oslo.

It may be worth mentioning at this point that, according to the mitochondrial DNA matches of Dorcas Johnson and Margaret Johnson, the daughter of Peter Johnson and his wife, Mary Polly Phillips (if that was her name,) their closest matches are clustered in Finland.

That, of course, strongly suggests that Peter Johnson (c1720-1790) probably married the daughter of one of the settler families wherever he was living in the early 1740s when he would have been marrying.

Let’s hope we find that someone descended from another daughter of Peter Johnson and Mary Polly Philips, through all females to the current generation, which can be male or female, to take a mitochondrial DNA test. That match would solidify the relationship of Dorcas and Margaret to Peter Johnson and Mary.

Now, to determine Peter’s ancestors…

Research Activities

Recently, I extracted records for Maryland and Virginia Counties when I visited the FamilySearch Library in Salt Lake City. Why Maryland and Virginia? John Dobkins, the father of Jacob and Evan Dobkins is first found in the Monocacy Valley of Maryland before migrating in the early 1730s to what was at that time Frederick County, VA with Jost Hite, one of the early land speculators. Frederick County became Augusta and Dunmore, which eventually became Shenandoah County. John Dobkins lived in Dunmore which is where both Darcus Johnson married Jacob Dobkins and Margaret Johnson married Evan Dobkins in 1775. The Dobkins family is connected with (and probably related to) the Riley Moore family who was found in Prince George’s County, MD, adjacent to Cecil County. Frederick County, MD was once part of Prince George’s County, and Frederick County MD is where Peter Johnson (c1720-1790) is found owning land, on the border with Pennsylvania – Josh Hite’s stomping ground.

Frederick County, VA is chocked full of settlers from Cecil County, Prince George’s County and Frederick County, MD. Furthermore, many New Jersey Quakers moved to Frederick County, VA and established the Hopewell Meeting House. It would make sense that Peter Johnson’s family, perhaps him or maybe his siblings and uncles would make their way down that same path leading to land on the next frontier.

I was tracking Johnsons by the first names we’re familiar with, plus Isaac Johnson who is found associated with John Dobkins in Shenandoah County, VA, as was John Johnson. I found two other records for Isaac Johnson in Frederick County, one in 1751 as a witness to the will of Adam Warner, and one in 1769 as a legatee of Ralph Thompson who also had a son named Isaac. Additionally, there’s an Isaac Johnson in Cumberland County, PA but there’s nothing to suggest that these are the same man. John Johnson was a very common name and I ran out of time.

Somehow, Peter Johnson HAD to be in the Dunmore County neighborhood in 1775 for his two daughters to marry John Dobkins’ sons. There is no record of Peter in Dunmore County in 1775, but the existing records are incomplete. In 1778, Dunmore became Shenandoah.

Was Peter related to either Isaac or John Johnson who were associated with John Dobkins? I wish I had the answer to that. Two of one’s daughters did not marry two sons of a family you weren’t acquainted with, in a location where you weren’t living. Courting required proximity. Of course, the Revolutionary War was interfering with just about everything, so who knows why Peter Johnson might have been in Virginia in 1775. The county records are incomplete during this time, and the entire country was in an uproar.

Peter Johnson sold his land on the Pennsylvania/Maryland border in 1769 and 1770 although his adult son Richard (Derrick) remained in that location, at least for a while. Peter’s Brethren neighbors in Maryland moved to Holman Creek in Dunmore/Shenandoah County, directly adjacent John Dobkins, becoming his neighbors.

One Peter Johnson is found in Bedford County, PA in 1772, but it’s doubtful that this is the same man since he’s listed as a single freeman. Other than that, Peter’s entirely missing from 1773 when he’s found in Rostravener Township, PA, which is all of SW Pennsylvania, until 1783 when he’s found again in the same location. Part of Rostravener became Allegheny County in 1780, where Peter Johnson eventually settled and died a decade later.

In 1776, one Peter Johnson swears an oath of allegiance in Cumberland Co., PA, but our Peter had already left. Peter Johnson is not a terribly unusual name.

One of the earlier Johnson books states that Peter came from Winchester, VA which is found in Frederick Co., VA where there is an early mention of a Peter Johnson. In 1773, according to Eric Johnson, one Richard and Priscilla Johnson mention their son Peter in a deed, although that may well be a younger man. I do not have that record, nor know where they lived.

In other words, the very best clue we have as to where Peter Johnson was found in 1775 is where his two daughters were married to Dobkins men.

In addition to these recent research activities, I have a friend who has been helping me search for tidbits high and low. I’m still processing the information she has sent. Maybe there’s something more hidden there.

Followup

I’ve written to the matches of my Johnson cousins asking if they will share their genealogy, or at least as much as they know.

I’d surely love to see additional Johnson and Yokum men take Y-DNA tests, and those who match our line upgrade to the Big Y-700. Perhaps, between more refined time tree placement in addition to jointly working on genealogy and sharing resources, we can isolate one lineage and eliminate the other. That alone would be a victory!

I’m still chiseling at this brick wall, bit by bit!

_____________________________________________________________

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cM Explainer™ – New MyHeritage Relationship Prediction Tool

At RootsTech, MyHeritage introduced cM Explainer, a new tool for all of their DNA customers that utilizes both the total matching cMs (centimorgans) plus the ages of the people involved, if provided by the customers, to estimate the relationship possibilities between two matches.

According to the MyHeritage blog article, here:

DNA Matches are characterized by the amount of DNA shared between two individuals, measured using a unit of genetic distance called centimorgans (cM). cM Explainer™ is unique in the way it uses both the centimorgan value as well as the ages of the two individuals (if known) to fine-tune its predictions, making MyHeritage the only major genealogy company to offer relationship prediction at this level of granularity and accuracy.

cM Explainer™ is fully integrated into the MyHeritage platform to shed light on any DNA Match found on MyHeritage, and is also available as a free standalone tool to benefit individuals who have tested with other DNA services.

Using cM Explainer

cM Explainer is automatically implemented for all MyHeritage DNA customers, so there’s nothing to do except utilize the tool in conjunction with the additional DNA tools already provided by MyHeritage.

Just click on DNA Matches if you’re a DNA customer, or under DNA Tools if you want to use the cM Explainer standalone tool.

Let’s look at my matches.

As you can see, two of my matches have provided their ages which appear in their match information.

The new cM Explainer probable relationship is listed as well. In Charlene’s case, she’s predicted to be a half first cousin, and Cheryl is predicted to be either a half first cousin, or a parent’s 1st cousin, which is another way of saying first cousin once removed.

Recall that “once removed” means one side of the descendant tree is one generation longer than the other. Cheryl and my Mom are first cousins (1C) and Cheryl and I are first cousins once removed (1C1R) or, said another way, I’m Cheryl’s first cousin’s daughter.

Probable Relationships

Some matches receive two listed “Probable Relationships,” but everyone can view additional estimates.

Click on the purple “Review DNA Match” button to view detail information.

My match’s segment information is provided, in addition to the possible relationships, in order of most probable first. To see additional information, click on the “show more relationships” link.

Charlene has a total of 5 possible relationships listed, each with its own probability calculated. One of my matches has a total of 8 possible relationships displayed.

Next, you’ll see the diagram of possible relationships.

Don’t forget to click on the “Relationships” dropdown in the upper right corner of the diagram.

You can click on Full relationships, Half relationships, or All Relationships.

I clicked on “all” which displays everything together.

Clicking the “Show probabilities for MRCA” box in the upper left-hand corner adds the probability that you and your match descend from a specific generation, or MRCA (most recent common ancestor.)

The highest or best probable relationship for cousin Charlene is calculated as 51.8% half first cousin.

The other possibilities are less likely. The second most likely is “Parent’s first cousin,” at 24.3%.

Charlene is my first cousin once removed (1C1R,) at the bottom. Stated another way, Charlene is my first cousin’s child, calculated at 4.5%, which should be genetically equivalent to a half first cousin at 51.8%. As you can see in the chart above, there’s VERY large probability difference between those two, which may be because of the expected comparative ages of the people in those positions involved.

Let’s take a minute to look at how half and “removed” relationships work genetically.

Half and “Removed” Relationships

In this example, John was married twice, to Mary and Sue. John had son Jim with Mary, and both daughters, Anna and Bonnie, with Sue. Their descendants took DNA tests.

In this chart, you can see that half-relationships of any kind carry half the average expected shared DNA as the full version of the same relationship. The yellow people, descendants of John and Mary, are half relationships to the green people because John was married to both Mary and Sue, having children with both wives.

The green people descend from full siblings, Anna and Bonnie, the children of Sue.

In the first generation, Jim and Anna are half siblings and share about 25% of their DNA. Anna and Bonnie are full siblings and share about 50% of their DNA. By extension, of course, Jim and Bonnie are half siblings too, sharing approximately 25% of their DNA, but not the exact same DNA as Jim and Anna share.

In the next generation, Jordan and Andrew are half first cousins and share about 6.25% of their DNA, while Andrew and Brad are full first cousins and share about 12.5% of their DNA.

Below the second cousin level, some cousins won’t match each other, but that doesn’t mean they aren’t cousins. It only means they didn’t happen to inherit a common segment of DNA from their common ancestors.

At the fourth-generation level, Jeremy and Abraham are half third cousins and share less than 1% or about 26.56 cM of their DNA, while Abraham and Betty are full third cousins and share about 53.13 cM of their DNA.

That half division of DNA occurred several generations earlier because Jim and Anna are half siblings which means that they only share half as much DNA as full siblings Anna and Bonnie. Of course, each subsequent generation will be a half relationship, and share roughly half as much as the full equivalent of that same relationship.

Once Removed

However, when the generations are offset by one, or once removed (1R,) the DNA is halved again. Looking at the chart again, half third cousins (3C,) Jeremy and Abraham share about 0.39% or about 25.56 cM of their DNA. Abraham and Beverly, who are 3C1R (third cousins once removed) are ALSO expected to share about 25.56 cM, the same amount of their DNA. In this comparison, the halving occurs in the last generation by the generational offset, when comparing Abraham with Beverly.

Of course, Jeremy and Beverly share the smallest percentage of all, because they are Half third cousins once removed, so they would be expected to share only about 13.28 cM of their DNA, assuming they share any at all.

I wrote about the various percentages expected of each relationship level and compiled a comprehensive chart in this article.

Of course, MyHeritage has included the factor of age to attempt to refine the relationship more succinctly.

How Accurate is cM Explainer?

I created a chart of my closest matches who are known, proven relatives.

Results where My Heritage has provided exact, accurate predictions are shown in red.

My first thought when I saw this new tool was that all of the people with whom I shared a Theory of Family Relativity (TOFR), especially relationships I had confirmed (or at least not rejected) would be predicted in cM Explainer to be that same relationship. Well, I was wrong.

Of the 8 matches with whom I have an accurate TOFR, the relationships of 4, or 50%, are correct, but the other 4 are not, so clearly, MyHeritage is not relying on TOFRs for cM Explainer, at least not solely, if at all.

Person Total cM # Segments Actual Relationship TOFR MyHeritage cM Explainer
Michael 822.8 31 1C Y 1C
Alberta 744.2 25 Half niece *1 (2nd on list) Y 1C
Dana 521.8 17 Half 1C1R (not on list) N 1st C dau, half 1C
Charlene 477.5 24 1C1R *2 (4th on list) N Half 1C
Cheryl 477.2 23 Parent’s 1C (2nd on list) N Half 1C, parent’s 1C
David 460.4 17 2C (3rd on list) N Half 1C
Buster 409.9 16 1C1R *3 N Parent’s 1C
Donald 381.7 17 1C1R (3rd on list) N 2C
Kurt 378.9 16 Half great-nephew (not on list) N 2C
Teresa 330.4 13 Half great-nephew (not on list) Y 2C
Shirley 223.3 8 2C1R (2nd on list) Y 2C
Sydney 217.8 10 Half great-nephew (not on list) N 2C dau, 1C dau
Buzz 212.7 9 2C Y 2C
Amos 182.7 8 1C2R (8th on list) N 2C son
Denny 166.9 6 3C (2nd on list) N 2C
Thomas 156.4 7 2C Y 2C
Patty 150.6 9 2C Y 2C
Cathy 102.9 5 3C Y 3C
Carol 87 7 2C1R (2nd on list) N 3C

*1 – Half aunt/uncle is equivalent to half niece/nephew – it’s simply a matter of perspective.

*2 – 1C1R (first cousin once removed) is the same relationship as a first cousin’s child, just said differently.

*3 – Your parent’s first cousin in your first cousin once removed (1C1R.)

In the Actual Relationship column, I’ve indicated the actual relationship, then if the actual relationship is shown on the chart of possibilities provided by MyHeritage, and if so, at which position.

For example, I’ve listed Alberta’s “Actual Relationship” as my half-niece. Additionally, there’s a comment at *1 below the chart. MyHeritage predicted Alberta as my first cousin, but the correct half-niece designation is shown second on the list.

In this case, I’m fairly sure I know exactly why the relationship miscalculation occurred. Alberta’s mother, my half-sister, was born to my father’s first wife. My mother was 22 years younger than my father, so my mother is roughly the same age as my half-sister. I am the same age as my half-sister’s oldest children. Therefore, we have an unusual generational difference where ages might be misleading.

In the second position, MyHeritage estimated Alberta as half-aunt, which is the same as half niece, depending on whose perspective you’re speaking from, so cM Explainer was close. In normal circumstances, 1st Cousin is probably the most likely relationship although having children separated by two decades certainly is not unheard of.

MyHeritage correctly predicted 6 of 19 relationships, for 31.6% accuracy.

The correct relationship was on the relationship list most of the time, but was omitted entirely 4 times. The common factor in the entirely missing relationships is that they are all half-relationships. While they were not all from the same family line, they did all involve long generations, meaning children born over a very long period. That’s not uncommon with half-siblings, and half relationships are notoriously difficult to sort from other candidate relationships. These situations might possibly be considered statistical outliers.

Equivalent Relationships

A half first cousin should be genetically equivalent to a first cousin, once removed, based on the amount of expected DNA for those relationships.

However, in at least one case, these two relationships are calculated with different resulting probabilities. Half first cousin is 41.5%, and 1st cousins child (aka 1C1R or 1st cousin once removed) is 43.8%.

Keep in mind, though that MyHeritage is using the age of the two individuals in their calculations, which could alter the results based on the combination of factors calculated into the probabilities. It’s 85% likely that the match is one of those two relationships.

Your Thoughts?

I’m interested in your thoughts on this new tool. How does it work for you? What about endogamy or pedigree collapse? Do you find it useful? How are you utilizing it in your research?

Shortly, I’ll do a comparison article with other tools to see how the publicly available cM Explainer tool stacks up against the rest.

Thanks to MyHeritage for making this tool free for all to use, here.

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Sneak Preview: Introducing the FamilyTreeDNA Group Time Tree

Drum roll please!!!

This is a sneak peek of a new tool being rolled out by FamilyTreeDNA in a VERY EARLY BETA soft launch.

Right now, the only way to view the Group Time Tree is by using the link to my group project, below, then, search for a different project name. I’ll show you, but first, let’s talk about this VERY COOL new tool for Big Y group project results.

The Group Time Tree is a feature that group project administrators and project members have wanted for a VERY long time!

At FamilyTreeDNA, the words “group” and “project” are both used to describe Group Projects which are projects run by volunteer administrators. FamilyTreeDNA customers can join any number of projects to collaborate with other testers who have a common interest.

Four basic types of public group projects exist:

  • Surname Group Projects
  • Haplogroup Group Project
  • Geographic Group Projects which can include other types of special interests
  • Mitochondrial Lineage Group Projects

What Does the Regular Discover Time Tree Do?

The Discover tool that was recently introduced (here) provides a Time Tree view of any specific haplogroup (but no surnames or ancestors) in relation to:

  • Big Y testers (not SNP-only testers and not STR results because they can’t be used for time-to-most-recent-common-ancestor (TMRCA) calculations)
  • Ancient Connections
  • Notable Connections

Using the regular Discover Haplogroup took, here’s an example of the haplogroups of the Estes (and other) men, beginning with the R-BY154784 lineage near the bottom. Time is at the top. The only way you know they are Estes men is because I told you. The Discover tool is haplogroup specific, not surname specific.

What Does the New Group Time Tree Do?

The brand-new Group Time Tree is an extension of the Discover technology, but focused within projects and includes both surnames and earliest known ancestors for people who have opted-in to have their results display in public group projects. This tool only works for group projects that have the public display enabled, and includes only data that the administrator has included. Not all administrators have enabled the display of the “Paternal Ancestor” field, for example.

Now, you can see Big Y group project members:

  • All mapped together on a genetic time tree, or
  • By project subgroups defined by the project administrator

I want to provide a friendly reminder that this is a BETA tool and will be fully rolled out in the not-too-distant future. In the meantime, it’s fun to have a sneak preview!!!

Estes DNA Group Project

Before going further, here are some screen shots of the Estes DNA Group Project for comparison.

I’ve created multiple color-coded groups within the project based on the genealogy and Y-DNA matches of the participants. The teal groups all descend from the Estes line from Kent, England, and match each other. Since not every man with an Estes surname descends from this line, there are also other color-identified groups.

Additionally, in the Estes project, I do not restrict members to males with the Estes surname, so there are several non-Estes men who have joined. Their Y-DNA shows in the project so I have placed them in an “Autosomal – Not Y DNA” group because they are Estes-related autosomally, not through the direct Y-DNA surname line.

I’ve grouped other clusters of Estes-surname males who do not descend from the Kent line into other color-coded groups, which turned out to be extremely beneficial for the new Group Time Tree.

Let’s see how the Estes Project works with the new Group Time Tree.

The Estes Group Time Tree

Here’s the link to the Estes Group Time Tree. I’ll be using the Estes data for this article, then show you how to view other group projects of your choosing from this link. So please read these instructions.

The Group Time Tree shows a genetic family tree of direct paternal lineages on a time scale. It shows how Big Y tested members of Group Projects are related to each other and when their shared ancestors are estimated to have lived.

Click on any image to enlarge

This is the first display I see.

Looking around, I notice the menu.

Select either “All search results” or the group or groups you want to view.

If you compare the groups above on the menu to the project screen shots, you’ll notice that the colors along the left side equate to the colors of the project subgroupings. We have Eastridge, meaning those who are not genetically Estes, then “Estes Autosomal, Not Y DNA,” then a group of teal project groupings who descend from the Estes Kent line.

I clicked on “Select All Search Results” which displayed everyone in the project from all haplogroups. This resulted in the Estes men being scrunched on the right-hand side, below, due to the long timeframe involved, which is not useful.

What is VERY useful is the Paternal Ancestor column which is the earliest known ancestor (EKA) for each tester’s line. Hopefully, this will encourage everyone to enter their EKA and location. You can find instructions, here.

Ok, let’s “De-select all” and just focus on specific groups.

Much better. I can see a much more relevant timeline for the men in the line being researched. The Estes men are no longer scrunched up along the right side because the left-to-right time is much shorter – 1500ish vs 100,000ish years.

The colored dot on the location flag indicates which colored group these men have been assigned to by the project administrator.

It’s very easy to see if two groups (or two men) descend from the same paternal line.

Next, I added the Eastridge group back into the display as an experiment.

The common ancestor between the single Eastridge Big Y tester and the Estes men is back in the Stone Age, about 35,000 BCE.

I do feel compelled to mention that this information can’t necessarily be extrapolated for all Eastridge men, because there are a few men with Eastridge surnames that are actually genetically Estes men. Someplace along the line, the name got changed. This is the perfect example of why every man needs to test their Y-DNA.

You can remove the menu by clicking on Subgroups.

You make the menu re-appear by clicking on Subgroups again.

I LOVE – LOVE – LOVE that I can see the ancestors and the clusters and I didn’t have to do this grouping myself. These men could have been in one big group in the project and the software would have created the clusters for me.

For example, there has been debate for decades about whether or not Moses Estes of South Carolina was descended from Abraham Estes, the immigrant, and if so, through which son.

Based on the Big Y-700 test (the Big Y-500 did not reveal this) and clustering, we know assuredly that Moses Estes of SC:

  • Descended from the Kent line
  • Descended from Abraham who has mutation R-BY490
  • Did NOT descend from Abraham’s son Moses whose descendants have mutation R-ZS3700

I’ve been keeping this project spreadsheet for years now. It’s wonderful to be able to see a genetic tree visualization. The Big Y men are blocked in red.

I’m hopeful that the balance of the men who have NOT yet taken the Big Y-700 will upgrade now because there’s so much more to learn. This is especially true for men who reach a brick wall prior to Abraham. The Big Y-700 test, perhaps combined with STRs, will place them in a lineage.

I’m sure that we would discover new haplogroups among Abraham’s descendants if they would all upgrade. There are more men who have not tested at the Big Y level than those that have.

Display Options

Under display options, you can add Ancient or Notable connections, remove confidence bars, and adjust the tree height.

Discoveries for Administrators

As a project administrator, one thing I discovered is that I might want to regroup within some of my projects to take full advantage of the color coding on the Group Time Tree. If you are a project administrator, you may want to ponder the same.

I also discovered that when I clicked on Country Map, I did not have Project Statistics enabled.

If you make project configuration changes, this report will only be updated weekly, so it’s not immediate.

The country map shows the distribution of all the countries within the project, not specific groups within projects

You can view Country Maps in either map or table format, but remember that if the project is a surname project and includes autosomal testers, the map view will not be representative of the surname itself. This view shows all groups.

Viewing Another Group Project

To view a different group project, simply enter that project name in the search box. For now, this is how you’ll be able to view group projects until this tool is fully rolled out.

I entered the surname “Speak” and was presented with these options.

Obviously, the surname Speak or a variation is found in these projects. Just click to view.

Your Turn

If you have not yet taken or upgraded to the Big Y-700 test, now’s the time. Order or upgrade, here.

If you have already taken the Big Y-700 test, or want to view a project, click on this link, and search for your project of choice.

Have fun!!!

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The Best of 2022

It’s that time of year where we look both backward and forward.

Thank you for your continued readership! Another year under our belts!

I always find it interesting to review the articles you found most interesting this past year.

In total, I published 97 articles in 2022, of which 56 were directly instructional about genetic genealogy. I say “directly instructional,” because, as you know, the 52 Ancestors series of articles are instructional too, but told through the lives of my ancestors. That leaves 41 articles that were either 52 Ancestors articles, or general in nature.

It has been quite a year.

2022 Highlights

In a way, writing these articles serves as a journal for the genetic genealogy community. I never realized that until I began scanning titles a year at a time.

Highlights of 2022 include:

Which articles were your favorites that were published in 2022, and why?

Your Favorites

Often, the topics I select for articles are directly related to your comments, questions and suggestions, especially if I haven’t covered the topic previously, or it needs to be featured again. Things change in this industry, often. That’s a good thing!

However, some articles become forever favorites. Current articles don’t have enough time to amass the number of views accumulated over years for articles published earlier, so recently published articles are often NOT found in the all-time favorites list.

Based on views, what are my readers’ favorites and what do they find most useful?

In the chart below, the 2022 ranking is not just the ranking of articles published in 2022, but the ranking of all articles based on 2022 views alone. Not surprisingly, six of the 15 favorite 2022 articles were published in 2022.

The All-Time Ranking is the ranking for those 2022 favorites IF they fell within the top 15 in the forever ranking, over the entire decade+ that this blog has existed.

Drum roll please!!!

Article Title Publication Date 2022 Ranking All-Time Ranking
Concepts – Calculating Ethnicity Percentages January 2017 1 2
Proving Native American Ancestry Using DNA December 2012 2 1
Ancestral DNA Percentages – How Much of Them in in You? June 2017 3 5
AutoKinship at GEDmatch by Genetic Affairs February 2022 4
442 Ancient Viking Skeletons Hold DNA Surprises – Does Your Y or Mitochondrial DNA Match? Daily Updates Here September 2020 5
The Origins of Zana of Abkhazia July 2021 6
Full or Half Siblings April 2019 7 15
Ancestry Rearranged the Furniture January 2022 8
DNA from 459 Ancient British Isles Burials Reveals Relationships – Does Yours Match? February 2022 9
DNA Inherited from Grandparents and Great-Grandparents January 2020 10
Ancestry Only Shows Shared Matches of 20 cM and Greater – What That Means & Why It Matters May 2022 11
How Much Indian Do I Have in Me??? June 2015 12 8
Top Ten RootsTech 2022 DNA Sessions + All DNA Session Links March 2022 13
FamilyTreeDNA DISCOVER Launches – Including Y DNA Haplogroup Ages June 2022 14
Ancient Ireland’s Y and Mitochondrial DNA – Do You Match??? November 2020 15

2023 Suggestions

I have a few articles already in the works for 2023, including some surprises. I’ll unveil one very soon.

We will be starting out with:

  • Information about RootsTech where I’ll be giving at least 7 presentations, in person, and probably doing a book signing too. Yes, I know, 7 sessions – what was I thinking? I’ve just missed everyone so very much.
  • An article about how accurately Ancestry’s ThruLines predicts Potential Ancestors and a few ways to prove, or disprove, accuracy.
  • The continuation of the “In Search Of” series.

As always, I’m open for 2023 suggestions.

In the comments, let me know what topics you’d like to see.

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Concepts: Your Matches on the Same Segment are NOT Necessarily Related to Each Other

Just because two (or more) people match you on the same segment does NOT mean they are related to each other.

This is a fundamental concept of DNA matching and of using a chromosome browser.

I want to make this concept crystal clear.

This past week, I’ve had two people contact me with the same question that’s based up on a critical misunderstanding, or maybe just lack of understanding.

It’s not intuitive – in fact, it’s counter-intuitive. I understand why they don’t understand.

It seems logical that if two or more people show up as a match to you on the chromosome browser, on the same segment, you’ve hit a home run and all you need to do is to identify their common ancestor who will also be your common ancestor, or at least related. Right?

NOT SO FAST!

Let’s walk through this, step-by-step. Once you “get it,” you’ll never forget it, and you can use this to help other people understand too. Please notice there are lots of links here to other articles I’ve written if you need refreshers or help with terms.

Yay! – I’ve Got Matches

OK, so you’ve just discovered that you have a close match with three people, on the same segment. You’re thrilled! Maybe you’re trying to identify your grandparent, so first or second cousin matches are VERY exciting for you.

They are also close enough matches with large enough segments that you don’t need to worry about false positive matches, meaning identical by chance.

Let’s take a look. I’m using FamilyTreeDNA because that’s where the majority of my family has tested, plus they have a nice chromosome browser and their unique matrix tool.

We have three nice-sized matches to people estimated to be my first or second cousins. I’ve selected all three and compared them in the chromosome browser. The large red match is 87 cM and the blue and teal matches are 39 cM each, and completely within the 87 cM segment, so completely overlapping.

I’ve hit the mother-lode, right?

All I need to do is identify THEIR common ancestor and I’ll surely find mine.

Right???

Nope

Just because they all three match ME on this same segment does NOT mean they all match each other and are from the same side of my family. All three people DO NOT NECESSARILY have the same ancestor. From this information alone, we cannot tell.

I know this seems counterintuitive, especially since you’re seeing them all on MY chromosomes – which are the background pallet.

However, remember that I have two chromosomes. One from my father and one from my mother.

These matches are ALWAYS FROM THE PERSPECTIVE OF THE TESTER.

So, I’m going to see matches in exactly the same location – matches on my mother’s chromosome and matches on my father’s chromosomes – painted on the same segment locations of my chromosome.

Let’s prove that in the simplest of ways.

Mom and Dad

This is my kit, compared with my Dad and Mom.

I only took a screen shot of my first several chromosomes, but you can see that I match both of my parents on the full length of each chromosome – on the same exact segments.

I am the background – the pallet upon which my matches are painted.

First, my father is painted, then my mother – their match to me displayed on my chromosomes.

I assure you, my father and mother are NOT related to each other. I’ll prove it.

I could simply select one parent, then look for the other parent on the shared matches list.

Or, I could use the Matrix tool, especially if I wanted to see if a group of people are related to me and also to each other.

The Matrix

The Matrix tool is available under “See More,” in the Autosomal DNA Results & Tools section.

The Matrix allows you to select 10 or fewer matches to see if they are matches to each other. We already know they are matches to you.

I added my parents into the matrix.

My parents do not match each other, meaning they are not genetically related, because their intersecting cell is not blue.

Next, let’s select those three other people I match and see if they match each other.

Yes indeed, we can see that Cheryl and Donald match each other, but Amos matches NEITHER Cheryl nor Don. Yet, the segments of Cheryl and Donald, who had the 39 cM blue and teal segments on the chromosome browser fall entirely within Amos’s 87 cM segment.

Therefore, if Cheryl and Donald do not match Amos, that means that Cheryl and Donald are from one side of my family, and Amos is from the other. This is absolutely true in this instance because we are comparing the exact same segment on my DNA, so everyone has to match me maternally or paternally, or by chance (IBC.) The segment size alone removes the possibility of IBC.

Each parent gave me one copy of chromosome 4, so everyone who matches me on chromosome 4 must match one or the other parent on that chromosome segment.

I’ve added my parents back into the comparison, at the bottom, with the three matches on chromosome 4. Now you can see that same segment again, and everyone matches me, parents included, of course.

There’s no way to tell the difference whether the blue, red and teal match is on my mother’s or father’s side without additional information.

Again, let’s prove it.

Everybody, Let’s Dance

I added my Mom and Dad back into the matrix.

You can see that Mom and Cheryl and Donald all match each other, plus me of course, by inference because these are my matches.

You can see that Amos and my Dad match each other, and me of course, but not the other people.

Settled

So, we’ve settled that, right.

In my case, I could provide this great example, because I do in fact have parental tests to use for comparison.

You can see when I remove my Dad and Amos that Cheryl and Donald and my Mom all match each other. If I were to remove my Mom, Cheryl and Donald would match each other.

If I remove Mom, Donald and Cheryl, Dad and Amos match each other.

Of course, you may not have either of your parents’ DNA to use as an anchor for matching. You may, in fact, be searching for a parent or close relative.

If you do have “anchor people,” by all means, use them. In fact, upload or create a tree, link your anchor people and as many others as possible to their profiles in your tree at FamilyTreeDNA so your matches will be automatically bucketed, meaning assigned maternally or paternally. FamilyTreeDNA is the only company that offers linking and triangulated bucketing.

But, if you’re searching for your parents or know nothing about your family, you won’t have an anchor point, so what’s next?

What’s Next?

Using a combination of matching, shared matches and the matrix, you can create your own grouping of matches.

My suggestion is to start with your 10 closest matches.

Pull all 10 into the matrix.

Remember, you will match these people across your chromosomes. The only question the matrix answers is “do my matches match each other,” and a “yes” doesn’t’ necessarily mean they match each other on the same line you match either or both of them on.

I’ve noted how each person is related to me.

You can see that there’s a large block of matches on my paternal side. Some are labeled “Father- both.” These people are related both maternally and paternally to my father, because either the families intermarried, or they are descendants of my paternal grandparents.

Three, Donald, Dennis and Cheryl are related on my mother’s side, but it’s worth noting that Dennis doesn’t match Cheryl or Donald. That doesn’t mean he’s not on my mother’s side, it simply means he descends through her maternal line, not the paternal line like Donald and Cheryl. Remember, we’re not comparing people who match on the same chromosome this time – we’re comparing my closest matches across all chromosomes, so it makes sense that my mother’s maternal matches won’t match her paternal matches, but they would both match Mom if she were in the matrix. Clearly they all match me or they would not be in my match list in the first place.

You could also run a Genetic Affairs AutoCluster or AutoTree to cluster your matches for you into groups, although you can’t select specifically which individuals to include, except by upper and lower thresholds.

Regardless of the method you select, you still need to do the homework to figure out the common ancestors, but it’s a lot easier knowing who also match each other.

Circling Back to the Beginning

Now, when you see those two or three or more people all matching you on the same segment on the chromosome browser, you KNOW that you can’t immediately assume they match you and therefore are all related to each other. It’s possible, and even probable that some of them will match you because they match your mother’s chromosome and some will match your father’s chromosome – so they are from different sides of your family.

The Matrix tool shows you, for groups of 10 or less, who also matches each other.

What you are doing by determining if multiple people share common segments and match each other is triangulation. I wrote about triangulation at each company in the articles below:

Unfortunately, Ancestry does not provide a chromosome browser, so triangulation is not possible, but Ancestry does provide shared matching with some caveats. However, some Ancestry customers do upload their DNA file to FamilyTreeDNA, MyHeritage or GEDmatch. You can find step-by-step download/upload instructions for all vendors, here.

Additional Resources

You’ve probably noticed there are lots of links in this article to other articles that I’ve written. You might want to go back and take a look at those if you’re in the process of educating yourself or need help wrapping your head around the “same segment address – two parents – your matches are not created equal” phenomenon.

Here are a couple of additional articles that will help you understand matching on both parents’ sides, and how to get the most out of matching, segments, triangulation and chromosome browsers.

I prepared a triangulation resource summary article, here:

Enjoy!!
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“Nature scientific reports” 2022 Editor’s Choice Collection – We Made It!!!!

You’ll excuse me while I jump for joy and do a happy dance. You might say I’m over the moon, pardon the pun. There’s nothing to lift your spirits quite like a pleasant surprise!I

In June, when our article, African mitochondrial haplogroup L7: a 100,000-year-old maternal human lineage discovered through reassessment and new sequencing was published, you may or may not have noticed that the journal name was “nature, scientific reports.” No, they don’t capitalize the words in the journal’s title.

I know I didn’t mention how difficult is it to get published in this particular journal, so you’ll just have to trust me about how many grey hairs I can attribute to that process.

Taking that into account, imagine my surprise today when I discovered our paper in the Editor’s Choice collection for 2022. That’s not only amazing, it was entirely unexpected. Ironically, they didn’t notify the authors, so we found out quite by accident.

“Congratulations!!!”

“For what?”

“Editor’s Choice”

“Editor’s Choice for what? Where?”

“Nature scientific reports – the Editor’s Choice articles for 2022. Your L7 paper. It’s there in Ancient DNA.”

“WHAT?????”

I had to look right away, of course, never mind that I was standing in line at the bank at the time. I hope they didn’t notice the strange woman giving out a little yelp and accompanying leap. Ok, maybe it was a tiny leap, more like a happy hop, but it still counts.

Here, you can look too!

I was dumbstruck. Truth be told, I didn’t even realize there WAS a yearly Editor’s Choice collection. My bad. I probably shouldn’t admit that😊

The editor’s intro mentions that Svante Pääbo won the Nobel Prize in Physiology or Medicine this year for his work over the past several years on sequencing the genomes of extinct hominins, founding the field of paleogenetics.

Excuse my fan-girl exuberance, but it has truly been a banner year for genetics. I can’t help but be incredibly geeked! I had to read the announcement two or three times to be sure I was seeing what I was seeing.

Our paper was selected as one of 5 in the Mitogenomics section of the ancient DNA category and has accumulated just over 9700+ views which is actually amazing for a scientific paper. So, thank you everyone who read it. I’m glad we made the paper “open access,” which means free.

I wrote about our discovery, here and we published a video, here, but our paper is slightly different than the ancient DNA of the other papers in that category. The other papers utilize DNA extracted from ancient remains, but the “ancient DNA” of haplogroup L7, reaching back 100,000 years, was discovered in living people, with the exception of one 16,000-year-old ancient sample from Malawi that had initially been misclassified as L5, but has since been moved to L7.

That’s super-exciting because we know that this hen’s-teeth rare lineage still exists in a few people. Maybe you’re one of them. Maybe you carry a different but equally-as-rare mitochondrial lineage – your mother’s direct maternal line.

I hope you’ll test your mitochondrial DNA, here, to see what secrets are waiting for you.

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Chromosomes and Genealogy

Sometimes people ask about how chromosomes relate to genealogy. Every single one of us started with that question, right?

Are chromosomes different sizes, and does that matter? What are the mystery terms, cMs and SNPs? How does all of this intersect with genealogy? Do I care?

These are all great questions, and of course, there are different ways to answer. Let’s start with some basics.

Chromosomes 1-22

First, you have two copies of each of chromosomes 1-22.

The karyogram above, a photo taken through a microscope, courtesy of the National Human Genome Research Institute, shows the chromosomes of a human male. I’ve added the numbering and labeled the X and Y chromosomes (23).

You inherit one copy of each chromosome from each of your parents. You can see the two halves of each chromosome, above. One half of each chromosome is contributed by the person’s mother, and the other half is contributed by the father.

That’s why DNA matching works, and each match can be designated as “maternal” or “paternal,” depending on how your match is related to you.

Each match will be related either maternally, paternally, or sometimes, both. Of course, that’s presuming the matches are identical by descent, and not identical by chance, but that’s a different discussion. For this article, we’re referencing valid matches with whom you share common ancestors – whether you know who they are or not.

Your 23rd chromosome is different than chromosomes 1-22.

Chromosome 23 Determines a Child’s Sex

Your 23rd chromosome is your sex-determination chromosome and is inherited differently.

You still inherit one copy of chromosome 23 from each parent.

  • Males inherit a Y chromosome from their father, which is what makes males male.
  • Males inherit an X chromosome from their mother.
  • Females inherit an X chromosome from both parents, which makes them female.
Chromosome 23 Father Contributes Mother Contributes
Male Child Y chromosome X chromosome
Female Child X chromosome X chromosome

Because males don’t inherit an X chromosome from their father, X chromosome matching for genealogy has a unique and specific pattern of descent which allows testers to immediately eliminate some potential common ancestors.

The Y chromosome can be tested separately for males and follows the direct paternal line. You can read about the 4 Kinds of DNA for Genetic Genealogy, here.

The X chromosome is quite useful for genealogy due to its unique inheritance path and is included by both FamilyTreeDNA and 23andMe in matching.

Picture This

Three of the four major vendors, plus GEDmatch, provide a visual match depiction of your chromosomes using a chromosome browser:

Unfortunately, Ancestry does not provide a chromosome browser or segment location information.

Using your chromosomes as the canvas, matches to your father and mother are shown using the chromosome browser at FamilyTreeDNA, below.

You can see that a tester matches both parents on the entire covered region of all of their chromosomes. The beginning and the end tips of each chromosome sometimes aren’t covered, and neither are some other regions that are very SNP-location-poor. Omitted regions are shown by hashes. Regions that are light grey, but not hashed, are covered, but the match’s test didn’t produce results in that region.

This is why you may have a slightly different size match with one parent versus the other, especially if they both didn’t test at the same vendor at the same time.

The chromosome browser graphic visually answers the chromosome size question, but there’s more to this answer. It’s easy to see that there’s a significant difference in the physical chromosome size, but there’s more to the story.

SNPs – Chromosome Street Addresses

SNPs, known as Single Nucleotide Polymorphisms, are mutations recorded at specific addresses on chromosomes. Each chromosome holds a specific number of addresses that are read during sequencing and used for match comparison.

All of your other matches that are not parent-child and not your identical twin will match on some subset of these locations.

The Rest of the Answer – Centimorgans and SNPs

Centimorgans (cMs) are units of recombination used to measure genetic distance. You can read a scientific definition here.

For our conceptual purposes, think of centimorgans as lines on a football field. They represent distance on the chromosome.

SNPs are locations that are compared between two people to see if a match occurs.

Think of SNPs as addresses for blades of grass on that football field where an expected value occurs. If values at that address are different, then they don’t match. If values are the same, then they do match. For autosomal DNA matching, we look for long runs of SNPs that match between two people to confirm a common ancestor.

Think of SNPs as blades of grass growing between the lines on the football field. In some areas, especially in my yard, there will be many fewer blades of grass between those lines than there would be on either a well-maintained football field, or maybe a manicured golf course. You can think of the lighter green bands as sparse growth and the darker green bands as dense growth.

If the distance between 2 lines on the football field is 8 cM, for example, and there are 700 blades of grass growing there, you’ll be a match to another person if (almost) all of your blades of grass between those 2 lines match, assuming the match threshold is minimally 8 cM and 700 SNPs.

For purposes of autosomal DNA, the combination of centimorgans (distance,) and the number of SNPs (locations) within that distance measurement determines if someone is considered a match to you. In other words, you’re listed as a match if the shared DNA is over the minimum or selected thresholds. Think of track and field hurdles. To get to the end (a match), you have to get over all of the hurdles!

For example, a threshold of 8 cM and 700 SNPs means that anyone who matches you equal to or greater than both of these cumulative thresholds will be displayed as a match. Centimorgans and SNPs work in tandem to ensure valid matches.

A Second Yardstick

So, the second measure of chromosome size is the number of cMs from the beginning to the end of the chromosome, and the number of SNPs on that chromosome.

Different vendors, and different DNA testing chips cover slightly different regions. This is my match with my mother, which shows:

  • Total matching cMs on each chromosome
  • Total matching SNPs on each chromosome
  • SNP Density, which is a calculation (cM/SNPs) showing how “thick” the SNP grass is on each chromosome

The higher the matching number of cMs, especially in a row (longest segment,) the higher quality the match, and the closer the relationship.

Note that endogamous, or intermarried populations, may need separate interpretations. I discussed the signs of endogamy in this article.

Calculating Matches

Some vendors provide the ability to select your match cM and SNP thresholds, and others make those selections for you. Most vendors no longer display the number of matching SNPs, given that SNP-poor regions are, for the most part, automatically eliminated, although you can view them in your matching segment download file. In other words, the vendors simply take care of this for you. The accepted rule of thumb has always been that 500 (some said 700) or fewer SNPs was too small to be genealogically relevant, regardless of the cM match size.

Vendors include numerous and varying factors in determining match quality and potential relationships, including:

  • Total shared DNA, meaning total matching cM
  • Longest shared, meaning contiguously matching DNA block
  • X matching
  • Sex of tester (especially with respect to X matching)
  • Endogamy flags
  • Half versus fully identical DNA regions (to positively identify relationships such as half vs full siblings)
  • Triangulated segments
  • Family Matching (maternal and paternal bucketing) at FamilyTreeDNA
  • Tree matching

Not all vendors include all factors, and each vendor utilizes proprietary algorithms for features like triangulation.

The question isn’t chromosome size or even match size alone, but the quality of the match plus additive genealogical features like Theories of Family Relativity at MyHeritage to identify common and even previously unknown ancestors.

Be sure to test at the primary vendors or upload for free to MyHeritage, FamilyTreeDNA and GEDmatch to receive as many matches as possible. You just never know where that match you really need is hiding!

Enjoy!

_____________________________________________________________

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I receive a small contribution when you click on some of the links to vendors in my articles. This does NOT increase the price you pay but helps me to keep the lights on and this informational blog free for everyone. Please click on the links in the articles or to the vendors below if you are purchasing products or DNA testing.

Thank you so much.

DNA Purchases and Free Uploads

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DNA Black Friday is Here

Yes, I know it’s not Friday yet, but the DNA Black Friday sales have started, and sale dates are limited, so here we go.

These are the best prices I’ve ever seen at both FamilyTreeDNA and MyHeritage. If you’ve been waiting to purchase a DNA test for that special someone, there’s never been a better time.

Remember, to jump-start your genetic genealogy, test close or targeted relatives in addition to yourself:

  • Parents, or if both parents are not available, full and half-siblings
  • If neither parents nor siblings are available, your siblings’ descendants
  • Grandparents or descendants of your grandparents – aunts, uncles, or their descendants
  • Cousins descended from great-grandparents or other known ancestors
  • Y and mitochondrial DNA descendants of specific, targeted ancestors

For yourself, you’ll want to fish in all the ponds by taking an autosomal test or uploading a DNA file to each of the four vendors. Upload/download instructions are available here.

Everyone can test their own mitochondrial DNA to learn about your mother’s direct matrilineal line, and males can test their Y-DNA to unveil information about their patrilineal or surname line. Women, you can test your father’s, brother’s, or paternal uncle’s Y-DNA.

I’ve written a DNA explainer article, 4 Kinds of DNA for Genetic Genealogy, which you might find helpful. Please feel free to pass it on.

Vendor Offerings

FamilyTreeDNA

Free shipping within the US for orders of $79 or more

FamilyTreeDNA is the only major testing company that offers multiple types of tests, meaning Y-DNA, mitochondrial and autosomal. You can also get your toes wet with introductory level tests for Y DNA (37 and 111 marker tests), or you can go for the big gun right away with the Big Y-700.

This means that if you’ve purchased tests in the past, you can upgrade now. Upgrade pricing is shown below. Click here to sign on to your account to purchase an upgrade or additional product.

At FamilyTreeDNA, by taking advantage of autosomal plus Y-DNA and mitochondrial DNA, you will get to know your ancestors in ways not possible elsewhere. You can even identify or track them using your myOrigins painted ethnicity segments.

FamilyTreeDNA divides your Family Finder matches maternal and paternally for you if you create or upload a tree and link known testers. How cool is this?!!!

MyHeritage

The MyHeritage DNA test is on sale for $36, the best autosomal test price I’ve ever seen anyplace.

MyHeritage has a significant European presence and I find European matches at MyHeritage that aren’t anyplace else. MyHeritage utilizes user trees and DNA matches to construct Theories of Family Relativity that shows how you and your matches may be related.

Remember, you can upload the raw data file from the MyHeritage DNA test to both FamilyTreeDNA and GEDmatch for free.

Free shipping on 2 kits or more.

This sale ends at the end-of-day on Black Friday.

You can combine your DNA test with a MyHeritage records subscription with a free trial, here.

Ancestry

The AncestryDNA test is $59, here. With Ancestry’s super-size DNA database, you’re sure to get lots of matches and hints via ThruLines.

You can get free shipping if you’re an Amazon Prime member.

If you order an AncestryDNA test, you can upload the raw DNA file to FamilyTreeDNA, MyHeritage and GEDmatch for free. Unfortunately, Ancestry does not accept uploads from other vendors.

23andMe

The 23andMe Ancestry + Traits DNA test is $79, here. 23andMe is well known for its Ancestry Composition (ethnicity) results and one-of-a-kind genetic tree.

The 23andMe Ancestry + Traits + Health test is now $99, here.

You can get free shipping if you’re an Amazon Prime member.

If you order either of the 23andMe tests, you can upload the raw data file to FamilyTreeDNA, MyHeritage, and GEDmatch for free. Unfortunately, 23andMe does not accept uploads from other vendors.

Can’t Wait!!

This is always my favorite time of the year because I know that beginning soon, we will all be receiving lots of new matches from people who purchased or received DNA tests during the holiday season.

  • What can you do to enhance your genealogy?
  • Have you ordered Y and mitochondrial DNA tests for yourself and people who carry the Y and mitochondrial DNA of your ancestors?
  • Are you in all of the autosomal databases?
  • Who are you ordering tests for?

_____________________________________________________________

Follow DNAexplain on Facebook, here or follow me on Twitter, here.

Share the Love!

You’re always welcome to forward articles or links to friends and share on social media.

If you haven’t already subscribed (it’s free,) you can receive an email whenever I publish by clicking the “follow” button on the main blog page, here.

You Can Help Keep This Blog Free

I receive a small contribution when you click on some of the links to vendors in my articles. This does NOT increase the price you pay but helps me to keep the lights on and this informational blog free for everyone. Please click on the links in the articles or to the vendors below if you are purchasing products or DNA testing.

Thank you so much.

DNA Purchases and Free Uploads

Genealogy Products and Services

My Book

Genealogy Books

Genealogy Research