On 9 Sep 1794 when Jonathan was 37, he first married Rebecca Lapham (59169) , daughter of Asa Lapham (49036) (12 Apr 1746-17 May 1841) & Betty Rogers (48563) (ca 1741-6 Jul 1823), in Marshfield, MA. Born on 2 Oct 1772 in Marshfield, MA.195 Rebecca was baptized on 23 May 1773.236

On 23 Nov 1801 when Jonathan was 44, he second married Ruth Jones in Marshfield, MA. Born on 29 Aug 1760 in Marshfield, MA. Ruth died in Marshfield, MA, on 19 Jan 1853; she was 92.