On 31 Jul 1729 when Isaac was 19, he married Elizabeth Child (37926) , daughter of Daniel Child (ca 1676-29 Jan 1723/4) & Beriah Bemis (18545) (23 Jun 1681-4 Nov 1768), in Waltham, MA.30 Born 18 Feb 1706/7 in Watertown, MA.30 Elizabeth died on 10 Jul 1791.

Isaac and Elizabeth were first cousins. Their mothers were sisters.

Children of Isaac and Elizabeth (Child) Stearns:
    i. John Stearns, b. 2 Jan 1731/2, 4 Jan 1734/5;
    ii. Silas Stearns, b. 6 Mar 1733/4, d. 31 Dec 1804;
    iii. Isaac Stearns, b. 18 Jan 1735/6, d. 8 Feb 1802, m. Nov 1768 Eunice Lawrence;
    iv. Phineas Stearns, b. 28 Feb 1737/8, d. 7 Oct 1792;
    v. Susanna Stearns, b. 9 Apr 1740, d. 11 May 1766, m. 26 Mar 1765 Josiah Wellington;
    vi. Joshua Stearns, b. 26 May 1742, d. 27 Oct 1746;
    vii. Sarah Stearns, b. 22 May 1744, m. 16 Jan 1769 Joseph Hastings;
    viii. Elizabeth Stearns, d. May 1832
    ix. Joshua Stearns, b. 10 Jul 1748, m. Lois Peirce (b. 2 Feb 1754, d. 13 Jan 1818);
    x. Jonathan Stearns, b. 22 May 1750; and
    xi. Elizabeth Stearns, b. 17 Mar 1751/2, m. 5 Nov 1770 Phineas Lawrence.

On 7 May 1741 when Mary was 28, she married Dea. Jonathan Sanderson, son of Samuel Sanderson (28 May 1681-8 Jul 1722) & Mercy Gale (16 Sep 1683-8 May 1776), in Waltham, MA. Born on 24 Feb 1714 in Watertown, MA.30 Jonathan died in Waltham, MA, on 31 Mar 1780; he was 66.30

Jonathan’s will was dated 26 Jan 1780. His estate was valued at £867 10s 11d, including a 70 acre farm (Middlesex Co. Probate, No. 19803).

On 18 Nov 1736 Susanna first married Jonathan Smith (51804) , son of Elisha Smith (11 Jan 1691-) & Patience Brown (34728) (ca 1697-bef 1730), in Lancaster, MA. Born 23 Jan 1714/5 in Weston, MA.262

Jonathan ye Son of Elisha smith & Patienc Smith Was born in Weston ye 23d. Day of January 1714-15.262

On 31 Mar 1747 Susanna second married John Divoll (45090) , son of William Divoll & Ruth Whitcomb (25790) (4 Jun 1672-), in Lunenburg, MA. Born ca 1696. John was baptized in Lancaster, MA, on 31 Oct 1708.

On 2 Dec 1766 Susanna third married Nathan Heywood (16957) , son of Dea. John Heywood (6250) (5 Apr 1662-2 Jan 1718) & Sarah Blodgett (17 Feb 1668-2 Jan 1716/7).550 Born on 24 Sep 1698 in Concord, MA.550 Nathan died in 1781.219

Nathan first married Esther Wiillis, second Susanna (Stearns) (Smith) Davol, widow of Jonathan Smith and John Davol.

On 22 Oct 1747 when Nathaniel was 29, he married Grace Hammond (39439) , daughter of Thomas Hammond (17 Nov 1685-22 Oct 1762) & Mary Harrington (20078) (11 May 1687-18 May 1760), in Watertown, MA.30 Born on 9 Dec 1723 in Watertown, MA.30

Children of Nathaniel and Grace (Hammond) Stearns:
    i. Nathaniel Stearns, b. 30 Jun 1749, d. Jan 1785 at Paxton, MA, m. 15 Dec 1774 Lydia Cushing;
    ii. Mary Stearns, b. 4 Sep 1751, m. Alpheus Brown;
    iii. Ruth Stearns, b. 20 Apr 1754;
    iv. Phebe Stearns, b. 17 Nov 1755, m. John Davis;
    v. Reuben Stearns, b. 6 Feb 1759; and
    vi. Eunice Stearns, b. 8 Feb 1761, m. Rev. John Foster.

Ca 1753 Peleg married Elizabeth Harris, daughter of Capt. Peter Harris. Born ca 1720. Elizabeth died in Charlestown, MA on 10 Apr 1789.

Child of Peleg and Elizabeth (Harris) Stearns:
    i. William Stearns, b. 10 Apr 1754 at Cambridge, m. 9 Dec 1781 Sarah White Sprague.