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

Vessel: Isaac; flag: Great Britain; rig: Snauw; estimated standardized tonnage: 146.3. People recorded in connection with the voyage: Captain: Townsend, Richard; Investor: Townsend, Richard; Investor: Livesley, John; Investor: Green, Robert; Investor: Fryer, Edward; Captain: Clatswort, David; Investor: Clatswort, David. The voyage began at Liverpool on 19 May 1759. Principal recorded place where captives were acquired: Iles Plantain (Sierra Leone). Principal recorded disembarkation place: Barbados, place unspecified. Recorded outcome: Voyage completed as intended.