I have seen a couple of gedcoms listing several Sanders children among the children of John Franklin Walker and wife Nancy Matilda Abhser. When I asked I was told that someone had info that Thompson Thomas Sanders asked that his children by his first wife Nancy (possibly) Abshire be raised by this John Franklin Walker and wife when he married his second wife. Since this Nancy (possibly) Abshire Sanders was not a sibling of Nancy Matilda Abshire nor of John Franklin Walker, I looked and found 2 gedcoms listing her as daughter of Allen Absher and Margaret Peggy Rexroat. I also found one saying Allen Absher married a Clarissa unknown-possibly a first wife? Allen seems to be the son of William Abshire and Nancy Jennings. This would be Nancy Matilda Absher Walker's great Uncle.
The Sanders children are Charles, Bersheba, Geroge, Ida, Allen and Addie Z Sanders.
Would love to hear from anyone with any information proving or disproving above. John Franklin and Nancy Matilda Absher are my direct line.