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

Vessel: John; flag: Great Britain; rig: Ship; estimated standardized tonnage: 268. People recorded in connection with the voyage: Investor: Bolton, John; Captain: Hensley, Samuel; Investor: Hensley, Samuel. The voyage began at Liverpool on 6 April 1799. Principal recorded place where captives were acquired: Congo River (West Central Africa and St Helena). Principal recorded disembarkation place: Demerara. Recorded outcome: Voyage completed as intended.