On 13 Aug 1778 Isaac married
Rebecca Bradford (54834) , daughter of
Peleg Bradford (45171) (9 Mar 1727-13 May 1804) &
Lydia Sturtevant (38736) (2 Mar 1723/4-26 Mar 1812), in Kingston, MA.
Born ca 1757 in Kingston, MA. Rebecca was baptized in Kingston, MA, CR1, on 8 May 1757.182