The slave ship John completed the voyage after transporting enslaved Africans to Barbados.

Vessel: John; flag: Great Britain; rig: Ship; estimated standardized tonnage: 146.3. People recorded in connection with the voyage: Investor: Green, Robert; Captain: Erskine, Robert; Investor: Erskine, Robert; Investor: Natham, John; Investor: Whyte, Anthony; Investor: Tippin, John; Investor: Tippin, Thomas; Captain: Twyor, Thomas. The voyage began at Liverpool on 30 June 1768. Principal recorded place where captives were acquired: Bonny (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Barbados, place unspecified. Estimated mortality during the crossing: 55.0%. Recorded outcome: Voyage completed as intended.