Graham, I did not have information of value for you. I scrolled The Slagle Family Genforum where your queries are placed. On July, 10, 1998 Diane Sheridan gives her lineage from Henry Slagle and Christina Keltner. There are other related queries of interest in regard to your connections located a few years later in the forum. Look for these names" Jewell Burke, Debbie Crain, Wm. Lyle Slagle and Diane S. Slagle" another time. I found these queries by placing Keltner in the Slaglegenforum SEEK box.Best of luck!, Becky.