John Henry was the brother of my ggg-grandfather. I have a copy of his marriage certificate to Elizabeth Cole. If you like I will scan it and send you a copy.
After the Civil War (around 1870), Joseph Stepp and his clan (including son John Henry) left Georgia and headed west to Greene County, Missouri (It was actually Walnut Grove, MO which is just north of Springfield). Everyone stayed in the area except John Henry and Elizabeth who wound up moving back to Georgia.