On 1 May 1755 when Mary was 22, she married
Joseph Johnson (32312) , son of
Lieut. Joseph Johnson (15042) (9 Sep 1685-25 Mar 1745) &
Lydia Twitchell (11 Oct 1686-), in Holliston, MA.
Born on 30 Jan 1731 in Sherborn, MA. Joseph died in Holliston, MA, on 9 Oct 1805; he was 74.