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

Vessel: Martha; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 146.3. People recorded in connection with the voyage: Captain: Smith, John; Investor: Powell, John; Investor: Powell; Captain: Roach, John. The voyage began at Bristol on 4 September 1775. Principal recorded place where captives were acquired: Anomabu (Gold Coast). Principal recorded disembarkation place: Jamaica, place unspecified. Recorded outcome: Voyage completed as intended.