I'm working on some of the Cotners that are in Harrison County, Indiana. My husband's paternal grandmother is Clara Cotner Rhodes. There is a book, and it is out of print, called "A Window to the Past: A Family History of Peter Gortner-Cotner 1704-1753 and His Descendants" by Neal Cotner. I do have a copy, but I do not have it unpacked yet as I am in the process of moving in to a new house. Once I get my stuff where I can access it, I'll probably be able to help you sort some of the mess out.