On 17 Mar 1780 when Isaac was 26, he married
Lydia Hatch (45015) , daughter of
David Hatch (39720) (2 May 1735-ca 1799) &
Desire Standish (25687) (30 Mar 1725-3 Dec 1782), in Halifax, MA.
Born on 20 Oct 1755 in Halifax, MA. Lydia died in Hanson, MA, on 12 Jun 1844; she was 88.