This son probably rode with his father in the Sandusky expedition under Col William Crawford. Claimed his Revolutionary pension 7 Jan 1833 at age 70. He had enlisted from Fayette Co PA in 1781.
John was probably the "Big John" Hardin in a 1795 tax list of Washington Co KY. John's family returned to Fayette Co PA [probably at the time his father died] where he died in 1853 at age 97, leaving two sons Peter and Joseph. He may have had other children.
1840 Census. Fayette Co PA, Georges Twp
John HARDIN and Barbara ROWNER were married on 24 September 1790 in Nelson County, Kentucky.4 Barbara ROWNER2 was born (date unknown). Barbara was the daughter of Joseph Rounder, a neighbor of the Hardins.