I got a post from you a while back. Sorry I have been so long in answering. My Dr. William Armistead Nelson only had two sons. One died at 4 months the other my grandfather Armistead. My father was Paul. His brothers were William A. and Randolph P.... Sorry no John.
On my mother's side is Dalton/ Shelton's from Pittsylvania, CO. VA... I just spent the summer there doing research on these lines. I come from Crispen/Gabriel. I have seen the name Nelson a couple of times during my research, but to date have not done an indepth search. I will be happy to share information with you. You can email me any time.