My grandfather's lineage seems to stop in Coshocton OH?

I've got loads of info on my father's maternal line and my grandfather's maternal line but is paternal line is hard for me to trace. Thomas Jefferson Reed was evidently born in or near Coshocton Ohio and moved to Millon Ohio. His son, Thomas Franklin Reed, was an ENT doctor until his death in 1921 in Millon. My father Thomas Kenyon Reed lived in Millon all his life and was a dentist there. Can anyone give me a push in the right direction?