The slave ship Mary left the African coast carrying enslaved Africans toward Saint Vincent and the Grenadines. About 171 people had been taken aboard.

Vessel: Mary; flag: Great Britain; rig: Ship; estimated standardized tonnage: 150. People recorded in connection with the voyage: Investor: Tarleton, Clayton; Investor: Rigg, William; Captain: Horsley, William; Investor: Horsley, William. The voyage began at Liverpool on 7 April 1792. Principal recorded place where captives were acquired: Bight of Benin, place unspecified. Principal recorded disembarkation place: St Vincent, port unspecified. Estimated mortality during the crossing: 2.0%. Recorded outcome: Voyage completed as intended.