On 27 Oct 1737 when Oliver was 20, he married Catherine Wilcox (38565) , daughter of Daniel Wilcox (19275) (ca 1680-22 Feb 1721) & Sarah Hort (16 Apr 1684-7 Jan 1755). Born ca 1717 in Dartmouth, MA. Catherine died in Nov 1760.

Children of Oliver and Catherine (Wilcox) Briggs, born at Dartmouth:
    i. Job Briggs, b. 22 May 1738;
    ii. Weston Briggs, b. 29 Feb 1739 [/40]; and
    iii. David Briggs, b. 22 Apr 1742.368