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

Vessel: William; flag: Great Britain; rig: Ship; estimated standardized tonnage: 451. People recorded in connection with the voyage: Captain: Dodson, Thomas; Investor: Dodson, Thomas; Captain: Hart, Richard; Investor: Hart, Richard; Captain: Marshall, John; Investor: Marshall, John; Investor: Montgomery, John; Investor: Gibbons, William; Investor: Myers, William; Investor: Marshall, James; Investor: Marshall, Thomas. The voyage began at Liverpool on 20 February 1799. Principal recorded place where captives were acquired: West Central Africa and St Helena, port unspecified. Principal recorded disembarkation place: Kingston. Recorded outcome: Captured by the French - after enslaved people disembarked.