On 29 Nov 1759 when William was 20, he married
Sarah Rider, daughter of
Samuel Rider (18 Feb 1702-6 Jan 1745/6) &
Experience Atwood (4 Jun 1705-21 Dec 1745), in Provincetown, MA.
Born on 31 Oct 1739 in Provincetown, MA. Sarah died in Plympton, MA, on 16 Jun 1826; she was 86.