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

Vessel: Diligent; flag: Great Britain; rig: Ship; estimated standardized tonnage: 378. People recorded in connection with the voyage: Investor: Hinde, William; Investor: Hinde, Samuel; Investor: Hinde, Thomas; Captain: Kirkby, Thomas; Investor: Kirkby, Thomas; Captain: Marshall, David; Investor: Marshall, David. The voyage began at Liverpool on 18 June 1803. Principal recorded place where captives were acquired: Bonny (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Demerara. Estimated mortality during the crossing: 10.1%. Recorded outcome: Voyage completed as intended.