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

Vessel: Mary; flag: Great Britain; rig: Ship; estimated standardized tonnage: 300. People recorded in connection with the voyage: Captain: Dickson, James; Investor: Dickson, James; Investor: Dickson, William; Captain: Cannell; Investor: Dickson, William (Jr). The voyage began at Liverpool on 22 July 1799. Principal recorded place where captives were acquired: West Central Africa and St Helena, port unspecified. Principal recorded disembarkation place: Kingston. Recorded outcome: Voyage completed as intended.