I am hoping that this thread is still available as I see it has been a long time since it was started.
I am a distant descendant of John and Agga. This has been proven through DNA however, the line has not been able to be shown. As it stands there is me, my father Oscar Leland Jr, his father Oscar Leland Sr, his father Johnie Sullivan and his father Gilbert Jasper. The earliest census I have for Gilbert is 1870, where it has a Jane Sullivan as housekeeper, in Yalobusha Co. My assumption is she is his mother. No father listed.
The logical scenario for me to come up with is that I descend from either Elkanah or Caleb (John Sr's children) as they moved to Tennessee around the relevant time.
I would be very grateful if anything can be added by anyone.