The slave ship Mary departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Grenada.

Vessel: Mary; flag: Great Britain; rig: Ship; estimated standardized tonnage: 101. People recorded in connection with the voyage: Investor: Jones, T; Investor: Jones, James; Captain: Mentor, Edward. The voyage began at Bristol on 19 February 1791. Principal recorded place where captives were acquired: New Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Grenada, place unspecified. Estimated mortality during the crossing: 4.0%. Recorded outcome: Voyage completed as intended.