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

Vessel: Mary; flag: Great Britain; rig: Ship; estimated standardized tonnage: 426. People recorded in connection with the voyage: Investor: Bolton, John; Captain: Stringer, William; Investor: Stringer, William. The voyage began at Liverpool on 7 May 1807. Principal recorded place where captives were acquired: Bonny (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Demerara. Recorded outcome: Voyage completed as intended.