The slave ship Mary left the African coast carrying enslaved Africans toward Jamaica. About 297 people had been taken aboard.

Vessel: Mary; flag: Great Britain; rig: Ship; estimated standardized tonnage: 185. People recorded in connection with the voyage: Investor: Harper, William; Investor: Brade, Robert; Captain: Hornby, Charles. The voyage began at Liverpool on 29 April 1792. Principal recorded place where captives were acquired: Bight of Biafra and Gulf of Guinea Islands, port unspecified. Principal recorded disembarkation place: Montego Bay. Estimated mortality during the crossing: 13.0%. Recorded outcome: Voyage completed as intended.