I have some McClanathan's in my family tree from Michigan. I have Ira, Bertha and Alvah McClanathan who were the children of Henry Wheaton and Melissa Laskey McClanathan.
Ira was born 1-29-1878. He married 3 times. First wife was Clara Carney. Second wife was his cousin Martha Baker and third wife was Catherine Bell. Ira and Clara had a daughter Leona. No children with Cousin Martha. By third wife Catherine, he had Irene, Wheaton John and Dempster Sidney McClanathan.