Galpin Looking for Living Relatives Some May Have Been Adopted

I am searching for any living relatives. These people lived in Michigan Fathers name: Russell Lloyd Galpin
Grandfather: Harry Burns Galpin married Gertrude Douglas
G Gradfather: Ozen Galpin married 1. Lillian Taylor 2. Ruth A. Graves Parker
These people lived in Ohio.
GG Grandfather: Ozias Galpin married (wife number 2 or 3) Susan Davis.