Everybody is glad to see you "back on the boards," Claude. Claude prepared an excellent text presentation about the descendants of Augustus Marion Slaton, which was the basis (and filter) for all the subsequent research I have done or received.
Most of my notes from Becky Heaney were somewhat incoherent, but there seemed to be some agreement that we could use Marvin E as a working hypothesis. Clyde Slatten of Carierre MS, who is part of the Arthur & Rachel group, knew this family and said that Marvin did not speak about his parentage. Clyde descended from a murdered ancestor in Edgefield SC, whose son Isaac P, moved to LA/MS, and always went by Slatten.
Claude's comments are noted and posted into my book, Slayden Family Index Appendix B.