U152 Thompson Big Y 700 Results

I was able to get big Y results for the direct descendants of Levi Thompson. This will likely be the last best test I can do for posterity. Few Y DNA matches have tested to this level.

At Y 111, we have a single match with a person descended from Francis Ireland b. 1787. The family tree at FTDNA is forbidden to me for some reason, but a quick google search shows at least one Francis Ireland with similar secondary family surnames like Simpson, who was born in Yorkshire England. The Ireland match is a genetic distance of 7 at Y111.

Several testers have gone to Y67 and tested individual SNPs on the path towards my U152 Thompsons. We’ve got a GD 3 match with a Mr. Davidson, GD 4 with Mr. Ireland above, GD 5 with John Thomson, about 1815 who tested to R-FGC4166 but only Y67 (that will come into play later) and GD 6 with multiple members of the Wilson family, one of which tested to R-FGC4166. Of note in these Y67 matches is one listing Joseph Allen, Gainesville, GA, USA who is in R-BY98312 but doesn’t make it to the Y111 STR match list.

At Y37 there are a few Allen/Allan matches at various distances who have only tested Y37 to add to the list, it’s possible there is an Allen tribe there like the Wilsons who are just different enough or untested so they don’t appear at higher testing levels.

The U152 “Indiana” Thompsons in my family are listed as R-BY98312 along with Mr. Allen. I have posted a lot about R-DF95 (U106 “Michigan” Thompsons) being a lonely branch but the sons of Levi Thompson have us beat. Here is the block tree as it stands in December 2020.

Thompsons over on the right in R-BY98312

it’s okay to leave it zoomed out. The Thompson and Allen are in the right hand column. There are 27 SNPs between the Thompson/Allens and the next group of men. This whole group of men is under R-FGC4166 (note Thomson above untested below R-FGC4166), We’re part of a group beneath that with R-BY123080 and BY142256 forming a base but that’s it. The Thompson/Allen group now defined by R-BY98312 represents a lot of time. I don’t have age dating for the U152 branches but it’s a lot of time even just adding up 83 year generations per SNP is over 2000 years between the Thompson/Allens and the next group.

Given the number of Y STR matches though, I’d suspect there are more Allens, some Wilsons, Davidsons, Douglases, a Duncan an Ireland and a Thomson that would probably fall in that right hand column somewhere, they just haven’t been tested.

The cluster of Allen/Allan Y STR testers (with one big Y tester in their midst) that my U152 Thompsons fall in with isn’t really clear on origins although one family tree points at Scotland the others have origins in the U.S. just like Levi Thompson. I’m 99.99% positive the Thompsons are borders English or Ulster Scots as advertised but can’t quite get them there with a paper trail.

The average (for the two testers) in the Thompson/Allen group is 8 SNPs. There are only two testers. My Thompson cousin has 10 SNPs in the private SNP list so the Allen tester must have 6. DIY aging for the shared group with big Y 700 uses 83 years.

10 X 83 = 830. 6 X 83 = 498. 830 + 498 = 1328. 1328 / 2 (testers) = 664 years. Without knowing the average birth year of the testers, I’ll go with 1950 – 664 = 1286. Roughly 1300 AD plus or minus a few generations for a common ancestor.

For Y DNA, 1300AD is great, but genealogically not so helpful unless you’re a member of the nobility. It’s a start though and my hope would be that we will see some people break up that big column or get closer to my Thompson cousins in the years to come. Over the years, I worked my way closer to that Thomson R-FGC4166 tester, now we’re well beyond them 2000 or more years down a path and will have to wait for others to catch up.

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