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

Vessel: Johns; flag: Great Britain; rig: Ship; estimated standardized tonnage: 261. People recorded in connection with the voyage: Investor: Cumpsty, John; Captain: Nunns, John; Investor: Nunns, John; Investor: Lowndes; Investor: Batelon. The voyage began at Liverpool on 14 March 1807. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Trinidad, port unspecified. Recorded outcome: Voyage completed as intended.