These are part of my Pyrons as well. This "Jacob F. Martin" was a puzzle I've been working on too and I think I finally figured it out. Joseph F. Martin married Melvina Rosa Pyron and had William Henry, Mary Ann, Gilroy, etc. Jacob Floyd Martin is Joseph's father. Somehow the Jacob and Joseph names got mixed up. Melvina Rosa Pyron is the daughter of Charles Milton Pyron and Essie Emma Loftis McKay. I have more info on them if anyone is interested in it.