On 14 Dec 1687 Mercy first married
Lieut. Josiah Richardson (22174) , son of
Capt. Josiah Richardson (8296) (ca 1635-22 Jun 1695) &
Remembrance Underwood (25 Feb 1639/40-20 Feb 1718/9), in Dunstable, MA.
Born on 18 May 1665 in Chelmsford, MA. Josiah died in Chelmsford, MA, on 21 Nov 1711; he was 46.