On 14 Dec 1687 when Josiah was 22, he married Mercy Parish (16400) , daughter of Robert Parish (ca 1635-21 Aug 1709) & Mercy Crispe (6087) (ca 1648-bef 1 Apr 1686), in Dunstable, MA. Born 5 Jan 1667/8. Mercy died in Dunstable, MA on 25 Apr 1743.

Children of Josiah and Mercy (Parish) Richarson, born at Chelmsford:
    i. Mercy Richardson, b. 9 Jan 1688/9, d. 25 Dec 1743 at Dracut, MA, m. ca. 1707 Ephraim Hildreth (b. 9 Jun 1680 at Chelmsford, d. 26 Sep 1740 at Dracut, son of James & Margaret (Ward) Hildreth);
    ii. Josiah Richardson, b. 5 May 1691, m. 1st Lydia (d. 28 MAR 1737 at Chelmsford), m. 2nd Elizabeth French (d. 15 Ded 1771 at Dracut);
    iii. Robert Richardson, b. 2 Oct 1693, m. Deborah;
    iv. Zachariah Richardson, b. Feb 1695/6, d. 22 Mar 1776 at Chelmsford, m. Sarah Butterfield (b. 23 Sep 1701, d. 11 Aug 1788 at Chelmsford);
    v. Hannah Richardson, b. 28 Sep 1698; and
    vi. William Richardson, b. 19 Sep 1701, m. ca. 1722 Elizabeth Colburn.

23 Jan 1694/5 Susanna married Henry Farwell in Chelmsford, MA. Born on 18 Dec 1674 in Chelmsford, MA.391 Henry died in Chelmsford, MA in 1738.

Henry, son of Joseph and Hannah (Learned) Farwell.