The slave ship Mary Ann departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Dominica.

Vessel: Mary; flag: Great Britain; rig: Ship; estimated standardized tonnage: 118. People recorded in connection with the voyage: Investor: Harper, William; Investor: Brade, Robert; Captain: Barrow, James; Investor: Barrow, James; Captain: Willacy, Thomas. The voyage began at Liverpool on 21 August 1785. Principal recorded place where captives were acquired: Bight of Biafra and Gulf of Guinea Islands, port unspecified. Principal recorded disembarkation place: Dominica, place unspecified. Recorded outcome: Voyage completed as intended.