On 2 Mar 1795 when William was 42, he married Priscilla Delano (51611) , daughter of Judah Delano (34497) (16 Aug 1724-8 May 1816) & Lydia Simmons (41176) (18 Apr 1724-26 Jan 1811), in Duxbury, MA. Born on 22 Nov 1755 in Duxbury, MA. Priscilla died in Duxbury, MA, on 17 Feb 1836; she was 80.