On 11 Sep 1777 when Ephraim was 38, he married Mary Richmond (40668) , daughter of Perez Richmond (41147) (5 Oct 1702-15 Sep 1774) & Deborah Loring (20988) (9 Dec 1710-14 Apr 1782). Born on 26 Aug 1749 in Dartmouth, MA.271 Mary died in Fairhaven, MA, on 7 Nov 1817; she was 68.