On 3 Nov 1793 Seth married Dorothy Sampson (48706) , daughter of Perez Sampson (59335) (16 Apr 1737-24 Jul 1824) & Mary Taylor (31303) (6 May 1740-), in Pembroke, MA.395 Born on 20 Aug 1768 in Duxbury, MA. Marriage intention published on 10 Oct 1793 at Marshfield, MA.

Dorothy, also called Dolly, was of Pembroke when she married Seth.

In 1850 Dolly was living with her son Seth Joyce’s family in Medford.