thanks so much for you email.i have been hoping for years to get a line or our allen family but, so far, no such luck.
my henry allen, son of my/ our george allen/ fanny bullock, married our elizabeth colbert in i think 1794 in oglethorpe co, va and their son, my stephen n allen married lucinda colbert, daughter of larkin colbert, in talbott co, ga.
info indicates that they were 1st cousins and that my/ our elizabeth colbert allen and our larkin colbert were the children of nicholas colbert also of oglethorpe co, ga.
i have never been able to get a lead at all on either our allen or colbert families.
so, sorry to say, i just do not know of any connections with your families in banks co, ga.
if you ever find a connection or happen to correspond with someone interested in our george allen/ fanny bullock, i would really appreciate your letting me know.