Did Thomas Bigby's daughter go to Texas later in her life? I think I may have seen something about her in this forum.
Thanks for looking. Surely both these Susans might have been named for a Susie from an earlier generation? The trouble is, the name is a white person's name. I can just picture someone maybe hiring a young Indian girl to do the washing or something, and deciding her Indian name was too complicated to say, so they would name her Susie, even if that wasn't her name, and it WAS the name of someone else! So, our Susies lost their real names and went down in the records as "Susie". Not only that, but some white people called ALL their hired servants the same name, since it was simpler that way. So it's easy to see how the names could get mixed up.
That's sort of my worst case scenario! Well, we'll just keep digging! I'm looking forward to what your aunt has to say. Bet she knows a lot of stories about your family, and maybe some about mine! (My Jane Payne, said to be the daughter of Susie Bigby and Henry Walls, was married to John Carroll Payne. They started out in Habersham Co GA, and moved to Coker Creek, Monroe Co TN, and lived there the rest of their lives--til 1863 or so. It can't be just a coincidence that your aunt lives there!)