The slave ship John departed from Jamaica after the slave-trading stage of the voyage.

Vessel: John; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 182.3. People recorded in connection with the voyage: Captain: King, Thomas; Investor: King, Thomas; Captain: Calvert; Investor: Calvert; Investor: Camden, William; Captain: Trail, Donald; Captain: Hewson, Andrew. The voyage began at London on 25 February 1785. Principal recorded place where captives were acquired: Gabon (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Kingston. Recorded outcome: Returned direct to Africa after bringing enslaved people to the Americas.