In the Abrams DNA project we had several years of rapid growth. Like many DNA projects, we have had some slowdown. We are still growing by about 10% a year. We have 60-70 members.
I am the volunteer Abrams administrator. These are our results so far. http://www.familytreedna.com/public/abrams/default.aspx?sect...
They are divided up in to about a dozen defined groups and several individuals.
The Original six people or so belonged to several different groups (Turkeyfoot PA, Hempstead/Long Island, Laurens/Newberry SC etc).
We have had several "surprises" so the DNA results have been very valuable in confirming relationships and in sometimes refuting assumed lineages.
Sunday, where did you take your DNA test? The ones above all tested with FTDNA and that is where the Abrams project resides.
Regarding Henry Sr, 1720-1828, you have a lot more Sidwell information than anyone else I have seen. I hope there are sources or other documentation.
About a dozen of our DNA testers descend from Henry Sr of Turkeyfoot, including myself. About 11 or so descend from Thomas and one from Henry Junior. We believe (and the DNA agrees) that Thomas and Henry were probably sons of Henry Sr, but there is no paper trail.
Even the 1720-1828 age span is probably just copied over and over.
This is a very interesting lineage of Abrahams back to the 1400s. I have not seen it before. Unfortunately we have not been to match DNA to anyone prior to Henry Sr. So no DNA connection back to Wales or Cornwall or England or wherever.
So for the Turkeyfoot group above and most of the other Abrams groups, it would be very helpful to get an Abrams from the British Isles or the Netherlands or Germany or Eastern Europe to confirm out links to the "Mother Country".
And...right now (March 2013) there is a 12 Marker DNA sale on at FTDNA for just $39 (regularly $99).