Aaron married Elizabeth Irwin on 20 Mar 1774 in Mercersburg, Franklin, Pennsylvania, United States. Elizabeth (daughter of James Irwin and Jane McDowell) was born in 1732 in Antrim, County Antrim, Northern Ireland, United Kingdom; died in 1795 in Lexington, Fayette, Kentucky, United States; was buried in 1795 in First Hill Cemetery, Lexington, Fayette, Kentucky, United States. [Group Sheet] [Family Chart]