Mr Barger comes across as kind of a crank [1 (http://www.angelfire.com/va/TJTruth/questions.html)], freely mixing majors and minors.
However, on the page you linked he mentions one of the salient facts and hints at one of the others:
There were several male Jefferson relatives living in the general area, any of whom could have given Eston Hemmings his Y chromosome
Eston Hemmings was born in 1808; Jefferson died a little over a year later; this means Jefferson would have fathered Eston Hemmings less than two years before he died.
On the basis of those two facts, I'd say that it's rather less than certain that Jefferson was Hemmings's father.
Furthermore, it strikes me as unlikely that Jefferson would have taken up having sex with his slaves late in life. If that's the case, where are the offspring of his relationships with other slaves?
no subject
However, on the page you linked he mentions one of the salient facts and hints at one of the others:
On the basis of those two facts, I'd say that it's rather less than certain that Jefferson was Hemmings's father.
Furthermore, it strikes me as unlikely that Jefferson would have taken up having sex with his slaves late in life. If that's the case, where are the offspring of his relationships with other slaves?