On 24 Apr 1711 when Theophilus was 19, he married Ruth Swan (10870) , daughter of Gershom Swan (30 Jun 1654-2 Jul 1708) & Sarah Holden (3624) (ca 1658-aft 1708), in Watertown, MA.124 Born on 25 Dec 1685 in Cambridge, MA.155 Ruth died in Stoneham, MA, on 26 Jun 1749; she was 63.232

Ruth first married Theophilus Richardson, second Ebenezer Parker as his second wife.

Children of Theophilus and Ruth (Swan) Richardson, born at Woburn:124
    i. Martha Richardson, b. 4 Feb 1711;
    ii. Ruth Richardson, b. 1 Sep 1714;
    iii. Edward Richardson, b. 17 Mar 1716;
    iv. Richard Richardson, b. 9 Nov 1719; and
    v. Moses Richardson, b. 8 Apr 1722.124