Hatfield, Calvin H.

Hi everyone,
Do any of you know of a Calvin H. Hatfield that was born in OH? I think it would be between 1825-1830 area. He was in the Civil War and died of Typhoid fever. He is on Find A Grave with his civil war stone etc. however we are trying to find his parents. He was on Onondaga, MI in the 1860 census with I believe Sarah. However, Sarah was not a legal wife per the civil war department. Can not find anything on him in the 1850 census so don't know if this man was traveling with his parents and they died or if he is actually of the KY and TN Hatfield family. Do any of you have him in your family of Hatfields?
Thanks,
Melody