On 3 Dec 1772 when William was 23, he married
Ann Butters (51291) , daughter of
Samuel Butters (34148) (30 Nov 1728-7 May 1793) &
Keziah Dana (15 Dec 1728-15 Jul 1759), in Wilmington, MA.
399 Born on 15 Mar 1754 in Wilmington, MA.399 Ann was baptized in Wilmington, MA, on 24 Mar 1754.209
Children of William and Ann (Butters) Foster:
i. Anna Foster, b. 1773, m. 19 Nov 1795 Samuel Sprague;
ii. Keziah Foster, b. 2 Oct 1778;
iii. Susanna Foster, b. 16 Apr 1781, m. John Dix of Reading;
iv. William Foster, b. 21 Jun 1783;
v. Nathaniel Sparrowhawk Foster, b. 10 mar 1786;
vi. Sally Foster, b. 14 Oct 1788;
vii. Ruth Foster, b. 6 May 1792;
viii. Benjamin Foster, b. 5 Aug 1793; and
ix. Desire Foster, b. 23 Nov 1796.209