MyHeritage and the Theory of Family Relativity

First, MyHeritage gets credit for a catchy name for their new utility. That reminds me of this cartoon:

MyHeritage is doing what AncestryDNA¬†does in matching up family history trees and DNA. In this Blog, I’ll look at my top three matches at MyHeritage that use this utility.

Melanie

I have blogged about this connection previously through Melanie’s mother Emily. Actually, it looks like I have written three Blogs on this connection. I was quite happy to come across Melanie and Emily. Here is Melanie and my shared tree at MyHeritage:

As a result of our connection, I shared a photo I had of Melanie’s great-grandmother Violet Frazer which appears on her tree. Melanie says this would have been taken on her wedding day. This was a very clear and clean match. Melanie and I share 19.9 cM of DNA.

Celeste: Theory of Family Relativity #2

I don’t recall Celeste. So this is a new find for me.

Celeste and I share 12.7 cM of DNA on Chromosome 9:

I have a web page on the Snell family and what I have matches what Celeste has. In fact, Norman was born in the same Town that I was. Here are our common ancestors:

Mary Ann was from Nantucket. Her father had a business repairing ships. Otis was on an early whaling voyage from New Bedford to Hawaii. He jumped ship, made his way to Nantucket and married Mary Ann in 1828.

Celeste and Snell/Parker at DNA Painter

I can paint Celeste’s DNA onto my chromosome map:

This takes up a small segment in dark blue on the top part of Chromosome 9 (the paternal part) that was already taken up by my great-grandparents’ DNA. However, this DNA goes further back in time and is more specific.

Here is the expanded view of the paternal side of my Chromosome 9:

The dark blue overlaps with Beth and Jim, so that means that Beth and Jim should have Snell/Parker DNA in that area of their Chromosome 9 also.

Marilee: Family #3

My match with Melanie was known and accurate. My match with Celeste was unknown and accurate. My match with Marilee is known, but I had a different connection shown than MyHeritage shows. This is what MyHeritage shows:

Here is how I had Marilee’s connection:

I show Marilee in a separate John Line in pink. MyHeritage shows us both in the Richard Frazer Line. I circled myself in the Philip Line, but I am also in the Richard line above. I left my family out of the yellow line to save room.

So how do I reconcile these trees? MyHeritage (MH) shows an expanded view that seems convincing:

There is a connection shown and percentage that I had not noticed before. When I click on the green percentage, it gives a comparison between my tree and a third tree. The same with Marilee’s comparison. It compares Mariee’s John Frazer with a John James Frazer in another tree and gives the match a 100% probability.

There is another thing that I didn’t notice. There is a tab called Path 2:

This path compares to another tree, which I recognize as Joanna’s – a Frazer researcher.

So, Who Is Right?

We may both be right. All I have to do is show two lines of Frazer descent for Marilee and that will reconcile the two trees.

Marilee and the Richard Line

If Marilee is from the Richard Line, it would support the earlier birth dates for Richard and his siblings. So, that in itself is interesting. Here is what I have now for the Richard Line:

I’m not sure about David on the left. Jane was added in. She has many matches and appears to belong in this line. Here is a detailed comparison between John James Frazer and John Frazer:

Marilee’s Tree

Next, I compare this with Marilee’s tree:

Here is the disconnect. Both trees cannot be right. MyHeritage ignored Marilee’s tree in favor of two other trees. Interesting.

Based On the Above, Marilee Cannot Descend from John and Richard Frazer

That means that there is more work to be done to figure out which tree is right. One might argue that John Frazer born 1825 was named for his father’s father John born 1755. It may be that DNA analysis could shed light on which line Marilee would most likely be in. There is a program called What Are the Odds? (WATO). However, I have not used this yet. It takes two scenarios and looks at the odds of one scenario being more likely than the other based on DNA matching. This could be the subject of a future Blog in addition to more genealogical analysis.

Match #4: Warwick from New Zealand

I’m having fun, so why stop at three? Warwick is my third Irish connection out of my top four Relativily Matches:

According to MH, Warwick is my 4th cousin, once removed and we share 17.8 cM on Chromosome 12:

For a reality check, I make sure that I have Frazer grandparent DNA in that part of my Chromosome 12:

I do. I expect that my siblings Sharon, Jon and Lori will also match Warwick. They do. In fact Emily, Paul and Stephen who are known McMaster descendants are shared DNA matches between Warwick and me.

Checking Warwick’s Tree

Warwick’s tree matches with what I have on my McMaster Web Page – at least down to Samuel:

Let’s Paint Warwick

Warwick represents some very old DNA:

The darker colored DNA next to Warwick’s is my 2nd cousin Paul:

I now know that Paul’s Chromosome match with me goes back to his McMaster side. MH shows it like this:

Paul, Warwick and I are in a Triangulation Group (TG). This TG goes back to Abraham McMaster or his wife Margery.

Summary and Conclusions

  • I took my first look at MyHeritage’s Theory of Family Relativity to see how it worked
  • Match #1 was no surprise
  • Match #2 was a surprise as I didn’t know about it. I’m sure this match was buried deep in my match list and the program nicely pulled it out. The matching trees were easily verifiable.
  • Match #3 , Marilee, was on my radar. However, the MH utility brought into question Marilee’s tree. The utility disregarded Marilee’s tree in favor of two other trees. Now I am not sure of either tree and will need to do some more analysis of the Marilee’s DNA matches.
  • I ended the Blog with Match #4. This match easily mapped new DNA and a new common ancestor onto my DNA Painter Chromosome Map.
  • Overall, I like the program and now see how it works. MH has an advantage over the AncestryDNA programs in that they show where on the chromosome the matches take place.
  • The down-side to the MH Relativity is that I only have 6 matches in the program. The two that I didn’t look at are related to the ones that I did look at.

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