The slave ship Neptune completed the voyage after transporting enslaved Africans to Grenada.

Vessel: Neptune; flag: Great Britain; rig: Brig; estimated standardized tonnage: 218.3. People recorded in connection with the voyage: Investor: Duffield, C; Captain: Hall, Abraham. The voyage began at London on 9 November 1775. Principal recorded place where captives were acquired: Gambia (Senegambia and offshore Atlantic). Principal recorded disembarkation place: Grenada, place unspecified. Recorded outcome: Voyage completed as intended.