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

Vessel: John; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 236.3. People recorded in connection with the voyage: Captain: Boats, William; Investor: Boats, William; Captain: Apsinall, James; Investor: Apsinall, James; Captain: Seaman, Thomas; Investor: Seaman, Thomas; Investor: Gregson, William; Investor: Holmer, Peter; Investor: Bridge, James. The voyage began at Liverpool on 20 July 1765. Principal recorded place where captives were acquired: Bonny (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Saint John (Antigua). Estimated mortality during the crossing: 12.0%. Recorded outcome: Voyage completed as intended.