Paul, I was able to find census info for James Sinclair Hunnicutt in Iowa, Tama County, for 1910. James S. Hunnicutt gives his birthplace as Ohio. His father born in Virginia and mother from Pennsylvania. I'm sure this is our common ancestor, because the names & dates of his children match the chart my father made for me from notes in an account book belonging to James Sinclair Hunnicutt. I believe my brother Ralph still has the notebook.

I hope this helps. I'm new to this game and I have had no luck in tracking James Sinclair to Ohio.