Hi, I'm a descendent of A. Campbell's dtr Mary and her husband Robt. P. Brown.
I've just found them in Cherokee County 1850 Census (marriage 1847), and the little Belvins, and because I'm looking for both families back in AL and GA, I wonder if you pursued them? Did you ever discover if the Belvins were relations, or just neighbors? I havent seen the two girls after they married young--did they become fellow-travellers of the Campbells or Browns?
Their story interests me and I would be happy to share information.