On 27 Mar 1723 when Josiah was 23, he married Thankful Harrington (20098) , daughter of Benjamin Harrington (7288) (28 Jan 1661/2-27 Mar 1724) & Abigail Bigelow (4 Feb 1663/4-12 Jan 1754), in Weston, MA.262 Born on 29 Sep 1701 in Watertown, MA.30 Thankful died in Weston, MA, on 6 Nov 1759; she was 58.

Children of Josiah and Thankful (Harrington) Livermore, born at Weston:
    i. James Livermore, b. 25 Jul 1724, m. 5 Jan 1750 Elizabeth Hastings;
    ii. Josiah Livermore, b. 21 Aug 1725, m. (int. 29 Apr 1749) Anna Garfield;
    iii. Jason Livermore, b. 1 Dec 1726, d. 14 Oct 1797;
    iv. Moses Livermore, b. 14 Jul 1729;
    v. Elizabeth Livermore, b. 4 Sep 1733, m. 6 Mar 1755 Francis Jones;
    vi. Lois Livermore, b. 22 Apr 1736, m. 4 Mar 1756 Samuel Livermore of Sudbury;
    vii. Abijah Livermore, b. 12 Dec 1737, d. 18 Jan 1817, m. 4 Nov 1760 Ann Graves of Sudbury (d. 14 oct 1793 at Spencer), m. 1795 widow Sarah Howe of Rutland (d. 4 jan 1815); and
    viii. Joseph Livermore, b. 11 Jul 1740, settled in Spencer in 1762, m. Anna.30