On 19 Nov 1679 Thomas married Mary Palmer.30

Children of Thomas and Mary (Palmer) Underwood:
    i. Thomas Underwood, b. 20 Oct 1680;
    ii. Mary Underwood, b. 5 Jun 1682;
    iii. Elizabeth Underwood, b. 13 Aug 1684, m. 25 Mar 1709 Jonathan Hewes “both of Camb.”;
    iv. Jonathan Underwood, b. 18 Aug 1686;
    v. Abigail Underwood, b. 26 Mar 1688;
    vi. Martha Underwood, b. 30 Jun 1689; and
    vii. Thomas Underwood, b. 3 Jun 1691.30