On 24 Dec 1724 when Benjamin was 25, he married Grace Tay (41970) , daughter of Nathaniel Tay (23 Feb 1654/5-18 Apr 1724) & Bathsheba Wyman (22115) (6 Oct 1658-), in Woburn, MA.124 Born on 18 May 1704 in Woburn, MA.124 Grace died ca 1794.461

Grace first married Benjamin Walker, second Samuel Hathorn, and third Caleb Eames as his second wife.

Children of Benjamin and Grace (Tay) Walker, the first two births recorded at Woburn,124 the other four at Wilmington:
    i. Mary Walker, b. 5 Oct 1725;
    ii. Elizabeth Walker, b. 17 Mar 1728;
    iii. Sarah Walker, b. 17 Sep 1730, m. at Wilmington 30 May 1765 John Beard;
    iv. Benjamin Walker, b. 12 Dec 1732;
    v. Grace Walker, b. 14 Aug 1735, m. at Wilmington 27 May 1760 Nathanaiel Patten; and
    vi. John Walker, b. 5 Jun 1738, m. at Wilmington 28 Mar 1765 Susanna Haywood.