On 1 Jul 1774 when John was 49, he married Catherine Whitmore (39362) , daughter of Josiah Whittemore (28 Aug 1702-bef 4 Jun 1783) & Catherine Fowle (19987) (20 Sep 1711-25 Dec 1790), in Charlestown, MA.256 Born 28 Jan 1731/2 in Charlestown, MA.256 Catherine died in Charlestown, MA on 9 Dec 1787.256