I am stuck with my Grandfather and Great-Grandfather.

My grandfather is still living and estranged from the family and all I have is his name. Henry Marvin Mitchem and that he lives in Macon, Bibb County, Georgia.

I am trying to find any information about him. His birthdate or who his parents were. I am pretty sure his father is Clayton J. Mitchem who was Perry J. Mitchem's son. All I have to tie Henry to Clayton is a story I heard as a child. These are the Oconee County, Georgia Mitchems

Can anyone help me?