The slave ship Mars departed from Jamaica after the slave-trading stage of the voyage.

Vessel: Mars; flag: Great Britain; rig: Ship; estimated standardized tonnage: 182.3. People recorded in connection with the voyage: Captain: Parke, Thos; Investor: Parke, Thos; Captain: Forsythe, John; Captain: Heywood; Investor: Heywood; Investor: Earl, Wm; Investor: Earle, Thomas (Sr); Investor: Earl, Thos (Jr); Investor: Davenport, William; Investor: Copeland, Jno. The voyage began at Liverpool on 15 April 1779. Principal recorded place where captives were acquired: Sierra Leone estuary. Principal recorded disembarkation place: Jamaica, place unspecified. Recorded outcome: Voyage completed as intended.