The slave ship Union arrived with enslaved Africans in Jamaica. About 549 people had been taken aboard and approximately 536 arrived.

Vessel: Union; flag: Great Britain; rig: Ship; estimated standardized tonnage: 415. People recorded in connection with the voyage: Captain: King, Thomas; Investor: King, Thomas; Captain: Calvert; Investor: Calvert; Investor: Camden, William; Captain: Thomson, James; Captain: Currie, Robert. The voyage began at London on 26 August 1791. Principal recorded place where captives were acquired: Anomabu (Gold Coast). Principal recorded disembarkation place: Kingston. Estimated mortality during the crossing: 2.0%. Recorded outcome: Returned direct to Africa after bringing enslaved people to the Americas.