These churches don't have their own cemeteries. Both historically, and currently, Belle Center area people are generally buried in Belle Center Fairview cemetery just outside town.
NEW Richland, rather than "Richland" as you have it is another very,very small village, just a church and a handful of houses, about a mile and a half from Belle Center. Log on to Mapquest and follow their directions to get maps showing where these places are in Ohio and their relative location to each other. Both Belle Center and New Richland are in Richland Township of Logan County.
Log on to http://www.rootsweb.com/~ohlogan/cem.htmlhttp://www.rootsweb.com/~ohlogan/cem.html and you will find entries for some Hemphills buried in Belle Center Faurview including a John Hemphill. Good luck and if I can be of any further help, please feel free to contact me.