That's a pretty impressive body of work there. I suspect you've actually put more original research into the effort than I have. I've just gotten good at glomming off the work of others.

As you noted, all my North American ancestors are either Yankees or Canadians. (With frequent blends of both.) But Paula's ancestors are almost entirely southern folk who came over to Virginia and the Carolinas and then migrated out along the Great Western Road to Tennessee, northern Mississippi, and eventually to Texas. If you want to poke around in the database, look for Rorie and Moody families. Or just go by this handy tree.