Ca 1681 Mary married William Thwing, son of Benjamin Thwing (ca 1619-1672) & Deborah [Thwing] (-ca 1673). Born on 28 Dec 1656 in Boston, MA.

William married Hannah Cheever, daughter of Daniel Cheever (ca 1620-26 Mar 1703) & Esther. Born in Dec 1662 in Cambridge, MA. Hannah died ca 1756.

On 8 Mar 1694 when Samuel was 24, he married Sarah Manning, daughter of George Manning (ca 1630-ca 1697) & Hannah Everell, in Boston, MA. Born on 19 Mar 1668 in Boston, MA. Sarah died in Boston, MA, on 29 Jul 1742; she was 74.275

Children of Samuel and Sarah (Manning) Barrett:
    i. Sarah Barrett, m. William Russell;
    ii. Thornton Barrett, d. 15 Sep 1744;
    iii. Mary Barrett, d. 14 Jul 1753, m. Charles Coffin;
    iv. Samuel Barrett, b. 1 Dec 1700, d 11 Dec 1772, minister at Hopkinton nearly fifty years;
    v. Edward Barrett, b. ca. 1703, m. 1st a dau. of Peter Leach of Boston, m. 2nd in.t 18 Dec 1737 Martha Skinner of Lynn;
    vi. George Barrett, b. 11 Jul 1705, d. 17 Aug 1745;
    vii. Lydia Barrett, b. 25 May 1706, d. Sep 1773, m. Philip Lewis;
    viii. John Barrett, b. 12 Jun 1708, m. 3 Jun 1731 Sarah Gerrish;
    ix. Mercy Barrett, b. 4 May 1713, d. Sep 1774, m. 1st John Skinner, m. 2nd a Mr Wendell;
    x. Isaiah Barrett, b. 5 Jan 1715, m. 1st 13 Sep 1739 Elizabeth Wadsworth (d. 9 May 1756, dau. of Joseph & Elizabeth (Savage) Wadsworth), m. 2nd 18 may 1758 Abigail Goff (d. 3 Mar 1777 æ. 60);
    xi. Susannah Barrett, b. 5 Sep 1716; and
    xii. Diana Barrett, b. 12 Nov 1717.275
Other children died in infancy.275