On 6 Jul 1729 Robert married Sarah Lake (20817) , daughter of David Lake (7656) (2 Jun 1679-4 Aug 1767) & Mary Wilcox (19276) (25 Feb 1682-6 May 1747), in Portsmouth, RI.322 Robert Bennett and Sarah Lake, both of Tiverton, were married by Gideon Freeborn, Justice, 6 Jul 1729. Sarah died bef 1767.

Robert and Sarah were both of Tiverton when they marrried.314 They were second cousins since their maternal grandmothers were sisters.

On 9 Dec 1729 Jeremiah married Lydia Gray (38538) , daughter of Edward Gray (31 Jan 1666-7 Jun 1726) & Mary Manchester (19256) (ca 1674-). Born on 12 May 1714 in Tiverton, RI.374

Lydia Gray, b. 12 May 1714, m. 9 Dec 1729 Jeremiah Bennett (b. ca. 1707, son of Robert & Amy (Manchester) Bennett);