You are correct. Depending how Southern Ohio and the surrounding areas are defined, there have been very few chip finds. My article on Elmwood Place, Ohio is in the Preserving Gaming History area. If you consider Steubenville as Southern Ohio, there are several articles on the internet and chips identified from there. I have lot's of information about Wheeling and The Greenbrier WV that I could share...eMail me.
Jim Linduff R-6210