I've learned, many years ago, that sometimes when you are chasing one family you have to detour long enough to investigate linked families, even it that wasn't your initial intention.
My interest in Fosters is because they are linked with Abernathys in Tuscaloosa County, AL. My _primary_ interest in them is what information they may bring me about those Abernathys. In this Alabama County, it is predominantly the Abernathys who descend from James Abernathy of Tuscaloosa County, his unknown 1st wife, and by Artimissa, his 2nd wife, that rivets my attention. Your Fosters may hold clues to the whereabouts of a direct male-only Abernathy or two from James suitable for Y-DNA testing and _that_ is my ultimate goal.