Its been a while since your post but thought I would respond anyway. You have probably found the information sought but I'm just starting to research my Fortson line. Briefly, I believe that my 3rd Great Grandmother, Martha (Patsey)Fortson, who married Samuel Brookin, was sister to your Susan Elizabeth(Betsey), both daughters (among other issue) of Stephen Fortson. I just located father Stephen's will in TSLA and I'm in the process of ordering a copy of the original. If you care to share information, just give me a holler.