Looking for Anything on My Great Grandfather S Family

Looking for anything on my great grandfather's family. His name is John Henry Annon. He was maried to Anna Mariah Rhinehart Annon. They live in or around Crooksville, OH. I do know that John was born in 1877 and Anna in 1883. I am looking for family past that. I'm just a lost pup trying to find home.