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

Vessel: Portland; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 182.3. People recorded in connection with the voyage: Captain: Marshall, Thomas; Investor: Marshall, Thomas; Captain: Dennison, William; Investor: Dennison, William; Captain: Gawith, Samuel; Investor: Gawith, Samuel; Investor: Beckwith, John; Investor: Benson, John; Investor: Postlethwaite, John. The voyage began at Liverpool on 12 May 1769. Principal recorded place where captives were acquired: Bassa (Windward Coast). Principal recorded disembarkation place: Barbados, place unspecified. Recorded outcome: Voyage completed as intended.