The slave ship Mary departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Saint Kitts and Nevis.

Vessel: Mary; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 164.3. People recorded in connection with the voyage: Investor: Blundell, Bryan; Captain: Kelly, John; Investor: Kelly, John; Investor: Shaw, Saml; Investor: Blundell, Jonathan; Investor: Blundell, William; Captain: Blundell, Richard; Investor: Blundell, Richard; Investor: Crosbie, Eliz; Captain: Johnson, John; Investor: Johnson, John. The voyage began at Liverpool on 9 June 1759. Principal recorded place where captives were acquired: Bight of Biafra and Gulf of Guinea Islands, port unspecified. Principal recorded disembarkation place: St Kitts, port unspecified. Recorded outcome: Voyage completed as intended.