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

Vessel: John; flag: Great Britain; rig: Ship; estimated standardized tonnage: 166. People recorded in connection with the voyage: Captain: Copeland, Jno; Investor: Copeland, Jno; Captain: Oates, Richard; Captain: Woodville, William (Jr). The voyage began at Liverpool on 20 September 1786. 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: Shipwrecked or destroyed, after disembarkation.