Mary "Wessen" [sic = Weston] was born on May 19, 1734 and christened on May 26, 1734 in Middlesex County, Massachusetts Bay Province, New England. Her father was Ephraim Weston and her mother was Mary Weston. 
Mary Weston married Abraham Washburn on February 10, 1753 in Middleborough, Plymouth, Massachusetts Bay, New England. 
Mary (Weston) Washburn died on June 29, 1808, in Pelham, Hampshire, Massachusetts, USA. 
"Massachusetts, Town Clerk, Vital and Town Records, 1626-2001," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q29L-1S7S : 3 November 2017), Abraham Washburn and Mary Weston, 10 Feb 1753; citing Marriage Notice, Middleborough, Plymouth, Massachusetts, United States, , town clerk offices, Massachusetts; FHL microfilm 945,014.
↑ "Massachusetts Deaths and Burials, 1795-1910," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:FCMQ-PQB : 10 February 2018), Mary Washburn in entry for Abraham Washburn, 29 Jun 1808; citing Pelham, Hampshire, Ma, reference Item 10 Pg85; FHL microfilm 1,863,562.