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

Vessel: Mary; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 132. People recorded in connection with the voyage: Investor: McDowal, Samuel; Investor: Twemlow, Thomas; Captain: Blofield, John; Captain: Hoyle, Charles. The voyage began at Liverpool on 3 July 1806. Principal recorded place where captives were acquired: Gabon (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Trinidad, port unspecified. Recorded outcome: Voyage completed as intended.