I don't know if this is any help, but my grandfather was Charles G. Lanum, Born in Mt. Sterling Iowa, Dies in Dysart Iowa, 1956.
He married my grandmother, Caroline Agusta Miner in 1906, but in doing research at Linn County I found that he was married once before the marriage to my grandmother. I believe that he married someone in extreme southeast Iowa or northeast Missouri in the 1890's.
Charles G. Lanum's mother and father were Jacob Lanum and Jenny Rose Lanum (Both buried in Harness cemetary outside Mt/ Streling Iowa.
I have lots more info so contact me at
paulharder@hotmail.com for additional information.
Paul Harder