The slave ship Annan completed the voyage after transporting enslaved Africans to Guyana.

Vessel: Annan; flag: Great Britain; rig: Ship; estimated standardized tonnage: 196. People recorded in connection with the voyage: Investor: Neilson, William; Investor: Heathcoat, William; Investor: Metcalfe, George; Captain: Harding, William; Investor: Harding, William; Captain: Robinson, John; Investor: Robinson, John; Captain: Scott, Joseph; Captain: Sibson, Matthew. The voyage began at Liverpool on 21 July 1799. Principal recorded place where captives were acquired: New Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Demerara. Recorded outcome: Voyage completed as intended.