I am also doing Doty research in Ohio, but have not connected to this Doty. There is a book about Old Sile' Doty. Contact Jane Kelly at the Williams County Public Library.Here is a page where you can send her a query. http://www.williamsco.lib.oh.us/html/genealogy.htmlhttp://www.williamsco.lib.oh.us/html/genealogy.html
I have also seen this book in the library at Angola, (Steuben Co.) Indiana.