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

Vessel: John; flag: Great Britain; rig: Ship; estimated standardized tonnage: 166. People recorded in connection with the voyage: Captain: Johnson, Moses; Investor: Johnson, Moses; Captain: Copeland, Jno; Investor: Copeland, Jno; Captain: Stevenson, William. The voyage began at Liverpool on 19 August 1785. Principal recorded place where captives were acquired: Bonny (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Dominica, place unspecified. Recorded outcome: Voyage completed as intended.