Crew List for the William and Henry lists Back crew member John Henderson on ship bound for Surinam, part of Atlantic slave trade network, 1833 (Cape Ann Museum, Unfolding Histories)
Letter from Richard Trask to Abigail Trask detailing poor treatment of Black crew in New Orleans but not taking into account that the ship he was captaining was actually part of Atlantic Slave Trading network, headed for Surinam. (Cape Ann Museum, Unfolding Histories; rights holder, Manchester Historical Museum)
List of locally built ships involved in the Trans-Atlantic Slave Trade
Susan_M_Harvey_The_Slave_Trade_and_Massa.docx
Harvey, Susan. Slavery in Massachusetts: A descendent of early settlers investigates the connections in Newburyport, Massachusetts. MA Thesis. Fitchburg State University, 2011. Date access March 24, 2021