The slave ship Mary left the African coast carrying enslaved Africans toward Antigua and Barbuda. About 143 people had been taken aboard.

Vessel: Mary; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 281.3. People recorded in connection with the voyage: Captain: Dundass, Alexander. The voyage began at London on 1756. Principal recorded place where captives were acquired: Gambia (Senegambia and offshore Atlantic). Principal recorded disembarkation place: Sierra Leone, port unspecified. Recorded resistance: Revolt by enslaved people. Recorded outcome: Captured by enslaved people: ship did not reach the Americas.