The slave ship Mary Ann arrived with enslaved Africans in Guyana. About 230 people had been taken aboard and approximately 207 arrived.

Vessel: Mary Ann; flag: Great Britain; rig: Ship; estimated standardized tonnage: 172. People recorded in connection with the voyage: Captain: Ainsworth, John; Investor: Ainsworth, John; Captain: Fisher, John; Investor: Fisher, John; Investor: Fisher, Jonathan; Investor: Fisher, Roger (Jr). The voyage began at Liverpool on 29 May 1807. Principal recorded place where captives were acquired: Congo River (West Central Africa and St Helena). Principal recorded disembarkation place: Demerara. Recorded outcome: Voyage completed as intended.