The slave ship Three Brothers departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Antigua and Barbuda.

Vessel: Three Brothers; flag: Great Britain; rig: Brig; estimated standardized tonnage: 218.3. People recorded in connection with the voyage: Captain: Kinghorn, John; Investor: Bradley. The voyage began at London on 20 December 1774. Principal recorded place where captives were acquired: Saint-Louis (Senegambia and offshore Atlantic). Principal recorded disembarkation place: Saint John (Antigua). Recorded outcome: Returned direct to Africa after bringing enslaved people to the Americas.