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: 218.3. People recorded in connection with the voyage: Investor: Case, George; Investor: Gregson, John; Investor: Gregson, James; Captain: Apsinall, James; Investor: Apsinall, James; Investor: Gregson, William; Investor: Wilson, Edward; Captain: Hanly, Richard; Investor: Hanly, Richard; Captain: Daniel, William. The voyage began at Liverpool on 28 October 1780. Principal recorded place where captives were acquired: Gold Coast, port unspecified. Principal recorded disembarkation place: Kingston. Recorded outcome: Voyage completed as intended.