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

Vessel: William and Mary; flag: Great Britain; rig: Brig; estimated standardized tonnage: 70. People recorded in connection with the voyage: Investor: Hayes, Thomas; Captain: Westron, Isaac; Captain: Stockman, Matthias. The voyage began at Liverpool on 19 September 1805. Principal recorded place where captives were acquired: Grand Mesurado (Windward Coast). Principal recorded disembarkation place: Barbados, place unspecified. Recorded outcome: Voyage completed as intended.