On 5 Dec 1770 when Joseph was 25, he married Susannah Clap (48774) , daughter of Nathaniel Clap Esq (31399) (11 Sep 1709-bef 19 Dec 1783) & Desire Bourne (31408) (19 Jan 1718/9-aft 9 Jul 1781), in Scituate, MA.52 Born on 13 Oct 1748 in Scituate, MA.310 Susannah was baptized in the Second Church of Scituate, on 30 Oct 1748.52 Susannah died in Scituate, MA, on 10 Feb 1820; she was 71.52

Children of Joseph and Susannah (Clap) Benson, born in Scituate: Joseph 1771, Nathaniel 1773, John 1774, Nathaniel 1776, Artamas 1778, Lucia 1780, Stephen 1782, Mercy 1785, Hannah 1787, Gorham 1791, and Abigail 1795.52