I started a family DNA testing group a few years ago and so got into heavy reading subject in order to be able to handle the inquiries from my family members in the test group (several of whom turned out not the be Southmayds after all was said and done, but that's a topic for another discussion perhaps). While not an expert, I did learn a few things.
Autosomal DNA testing is done to determine the "genetic percentages" of a person's ancestry from particular continents/regions or to identify the countries and "tribes" of origin on an overall basis (Southmayds are Kurgan tribesmen). I don't see how this would further the ball on the TJ-Hemmings controversy since all of TJ's male relatives would presumably be the same, assuming they all were exact Y DNA matches (something that is not a fact in evidence as I understand it and perhaps should be pursued).
What I have also learned is that an "exact" Y haplogroup and DNA profile match, whether 12 or 111 markers, only isolates a group of potential males, which can be, perhaps, narrowed down by factors such as "access" and "opportunity." Based on the current DNA empiracal evidence, and the fact that other Jefferson males indeed had potential "access" and "opportunity," it is impossible to definitively point the genetic finger at anyone as I see it.
Yojsouth
SOUTHMAYD & MILLER
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> Date: Thu, 1 Sep 2011 11:27:31 -0500
> From: [log in to unmask]
> Subject: Re: Sally Hemings is back
> To: [log in to unmask]
>
> > ... Now there is a test known as autosomal
> > testing ... .If someone was truly interested in
> > proving or disproving the connection between
> > the Jeffersons and Hemings family they
> > would do this test.
>
> Thanks for this information. I'd like to send it to a number of people (on all sides of the debate). Has anyone published about it specifically for the Hemings-TJ case? Would it require digging up the graveyard at the foot of Monticello, or what?
>
> Steve Corneliussen
>
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