Stephen, I have a David Cooley in Ohio and Indiana. He was married to a Sarah according to the 1880 census of Licking Co., Ohio. I have not been able to get much info on them yet but I have just started this lineage. David and Sarah had Lewis and Rosa Cooley. Lewis is my g-grandfather. You can e-mail me at firstname.lastname@example.org . Let me know if it helps or not.