On 25 Apr 1751 when Mary was 20, she married Nathaniel Wiley (41760) , son of Timothy Wiley (ca 1689-19 Aug 1749) & Mary Poole (21943) (25 Oct 1695-11 Apr 1770), in Andover, MA. Born on 11 Apr 1729 in Reading, MA. Nathaniel died in South Reading, MA, on 22 Jan 1822; he was 92.