The slave ship John left the African coast carrying enslaved Africans toward Jamaica. About 180 people had been taken aboard.

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; Investor: Camden, William; Investor: Calvert, Anthony; Captain: Hewson, Andrew; Captain: Willoughby, William. The voyage began at Jamaica, place unspecified on 11 April 1786. Principal recorded place where captives were acquired: Gold Coast, port unspecified. Principal recorded disembarkation place: Kingston. Recorded outcome: Voyage completed as intended.