Benoni was involved in the shipping trade with his brother, Resolved; their vessels often conducted business in Surinam, South America. Benoni was also involved in Warwick’s civil and military affairs, holding a wide variety of civic titles and militia ranks between the late 1720s and the late 1760s. He participated in recruiting troops for an expedition to Canada (Cape Breton) during King George’s War circa 1745.
Among the Benoni Waterman papers is an agreement for the guardianship of fourteen-year-old Hannah Waterman (1740-1820), daughter of Captain John Waterman (1698-1751), to her uncle Benoni Waterman (box 1, folder 6).