Saturday, August 9, 2014

GEDmatch is coming back real strong! is my all out favorite tool when getting down to the comparison of cousins DNA results to see where we match. Was recently in touch with one of Mom's strong matches on AncestryDNA and even though we both have good healthy sized trees to look at, neither of us - nor the Ancestry matching function - could see where we matched! 3rd to 4th cousin, and no match on our trees...? Huh? Obvious conclusion: a big fat mistake on one of our trees.

Cousin Michael was the match. He's great to work with, replies quickly and with as much info as he has. When I told him about GEDmatch he popped on over and had his raw file uploaded in a flash. And now that GEDmatch is going again (and looks to be better than ever) his data was finished with the first phase of processing, called tokenizing, by days end and that means that our kits were available for one-to-one comparison. The full processing which allows one-to-many analysis will take longer.

Because that one-to-one comparison was quickly available I could see that his kit and Mom's kit had really juicy matches on three chromosomes. Here's what that looked like.

Chr Start LocationEnd LocationCentimorgans (cM) SNPs
Largest segment = 27.9 cM
Total of segments > 7 cM = 65.1 cM
Estimated number of generations to MRCA = 3.9

Then I took that information on over to my Farrell DNA Project spreadsheet and could see right away that he doesn't fit in there because there were no shared chromosome segments. My Farrell Project peeps do not match anywhere on chromosome 1 or 6, at all! And only one person even has even an inkling of anything happening on 21 and it's not on this particular segment.

So where does he fit? If not the Farrell line, which includes the surnames of House, Biggerstaff and Hartley too, then where on Mom's tree might he match. I went on over to Ancestry to check out Mom's Big Tree so that I could more easily visualize where the match could be and here's what I saw, with the candidate lines in the red box.

Click to enlarge.

The Williams, Price, and Whetstone lines are what we're after. Because Michael matches at about the 4th generation back, a list of the surnames and locations we're looking for is helpful.

Williams, Edwards, Price and another Williams are the surnames associated with Mom's paternal grandfather's line and they're all from Wales. None of Michael's ancestors are from Wales but that doesn't mean that there might not be a connection back before he can see, based on what's not on his tree. 

Mom's paternal grandmother's lines are from Wales - Thomas - but Mom's paternal grandfather's line - Price and Hill- are mostly form Virginia. Michael has a lot of folks from Virginia on his tree so this is a commonality that bears closer scrutiny.

Now we come to the Whetstones. They hail originally from Germany and then probably Switzerland and on to Pennsylvania before the Revolutionary War. I don't see anything hopeful there.

So it looks like we need to take a closer look at the Price and Hill lines from the earliest days of the Virginia Colony forward. And we especially need to look at any lines that aren't filled out to about the 5 generation mark.

Well that's the problem in a nutshell and how we'll proceed. Don't know how much luck we'll have but at least it's a way forward. What I need is some Williams DNA and I know where to find it. Cousin Andrew tested on and so now I'm off to connect up again and ask if he'd be willing to upload to GEDmatch. It would be very helpful to have Whetstone DNA as well... but I have to figure out how to get that.

Hey, I just stumbled into another GEDmatch tool that helps me get an idea of Dad's DNA! Dad passed before all of this DNA for genealogy stuff got going. But now I see how to get it! I'll blog about that next time when I've had more time to explore this new-to-me GEDmatch tool.

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