The slave ship John departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Jamaica.

Vessel: John; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 106. People recorded in connection with the voyage: Captain: King, Thomas; Investor: King, Thomas; Captain: Calvert; Investor: Calvert; Investor: Camden, William; Captain: Willoughby, William. The voyage began at London on 15 August 1787. Principal recorded place where captives were acquired: Cameroons (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.