On 8 Mar 1785 when John was 21, he first married Lucy Thaxter (49519) , daughter of John Thaxter (46305) (22 Nov 1721-6 Oct 1802) & Anna Quincy (32671) (ca 1719/20-8 May 1799), in Hingham, MA. Born on 16 May 1760 in Hingham, MA. Lucy died in Hingham, MA, on 22 Jun 1786; she was 26.

On 20 Dec 1787 when John was 24, he second married Christiana Thaxter (54133) , daughter of Benjamin Thaxter (46310) (7 Jun 1730-4 Jul 1805) & Susanna Joy (37874) (7 Oct 1732-31 Jan 1810), in Hingham, MA.45 Born on 2 Dec 1766 in Hingham, MA.45 Christiana died in Weymouth, MA, on 1 Sep 1847; she was 80.