On 1 Sep 1791 when Mary was 21, she married
Isaac Beard (58089) , son of
Isaac Beard (45951) (1735-11 Oct 1805) &
Rebecca Jaquith (49405) (6 Jul 1740-), in Billerica, MA.
502 Born on 2 Jun 1763 in Wilmington, MA. Isaac died in Townsend, MA, on 3 Dec 1810; he was 47.