On 24 Nov 1721 when John was 26, he married Sarah Head. Born 2 Feb 1701/2.
Children of John and Sarah (Head) Peabody, born at Boxford:
i. Sarah Peabody, b. 15 Jan 1722/3, m. 1st 1 Aug 1745 James Stevens, m. 2nd John Peters;
ii. Oliver Peabody, b. 22 Jun 1725, d. ca. 1796, m. 9 Nov 1752 Sarah Robinson;
iii. Mehitable Peabody, b. 20 Aug 1727, m. 17 Dec 1761 Solomon Wood;
iv. John Peabody, b. 16 Jan 1729/30, d. Apr 1732;
v. John Peabody, b. 9 Aug 1732, d. 12 Jun 1820, m. 28 Jun 1764 Mary Perley (b. 4 Jun 1741 at Boxford, d. 15 Jul 1824, dau. of Thomas & Enice (Putnam) Perley);
vi. Elizabeth Peabody, b. 1 Apr 1735, d. before 1780, m. 15 Apr 1762 Moses Coburn;
vii. Mary Peabody, b. 20 Oct 1737, d. 1 Mar 1737/8;
viii. Mary Peabody, b. 27 Jan 1738/9, d. 10 Jun 1808;
ix. Stephen Peabody, b. 11 Nov 1741, d. 23 may 1819, m. 1st 19 Jan 1773 Mary Hazelton (d. 19 Sep 1793), m. 2nd 8 Dec 1795 Elizabeth Smith (b. ca. 1750, dau. of William & Elizabeth (Quincy) Smith, widow of John Shaw); and
x. Rebecca Peabody, b. 16 Sep 1746, d. 2 Oct 1806, m. 29 Dec 1785 Alexander Montgomery.