Jervis from Bellefontaine Ohio

I am looking for my lost family from Bellefontaine, ohio. I'm the grandson of George Harrison Jervis and Mirty (Blanche) Thomas-Jervis. The only info I have is that they lived and died in Bellefontaine, Ohio. I know my fathers name is Kenneth Earl Jervis but I haven't seen him in many years. I would like to know more about my heritage and pass it on to my son. Any help in this matter will be highly appreciated.

Dale Jervis