The slave ship Alfred departed from Jamaica after the slave-trading stage of the voyage.

Vessel: Alfred; flag: Great Britain; rig: Ship; estimated standardized tonnage: 199. People recorded in connection with the voyage: Captain: Williams, David; Investor: Deane, Thomas; Investor: Jones, James; Investor: Stratton, Richard; Investor: Rigge, Thomas; Investor: Watkins, Edward. The voyage began at Bristol on 19 July 1790. Principal recorded place where captives were acquired: Bonny (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Black River. Estimated mortality during the crossing: 6.0%. Recorded outcome: Voyage completed as intended.