The slave ship John left the African coast carrying enslaved Africans toward Jamaica. About 300 people had been taken aboard.

Vessel: John; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 146.3. People recorded in connection with the voyage: Investor: James, W; Investor: Ford, Charles; Captain: Fletcher, John; Investor: Fletcher, John; Captain: Charles, John; Investor: Charles, John. The voyage began at Liverpool on 20 October 1766. Principal recorded place where captives were acquired: Anomabu (Gold Coast). Principal recorded disembarkation place: Kingston. Estimated mortality during the crossing: 8.0%. Recorded outcome: Voyage completed as intended.