He married, first, Elizabeth Ballard (1745-1793), whose father had been clerk of Princess Anne County, Maryland. Although neither of their sons married, nor did daughter Elizabeth, their firstborn daughter Anne married William Randolph of Wilton and their third daughter Catherine married Joseph Biddle Wilkinson (son of General Wilkinson, and who moved to Louisiana). After her death, Andrews remarried, to Mary Blair (1758-1820), daughter of Justice John Blair, but they had no children.William and Mary College Quarterly Magazine, vol. 5, no. 1 (1896) p. 148
