The slave ship May left the African coast carrying enslaved Africans toward Jamaica. About 363 people had been taken aboard.

Vessel: May; flag: Great Britain; rig: Ship; estimated standardized tonnage: 230. People recorded in connection with the voyage: Captain: Carson, John; Investor: Carson, John; Captain: Rigmaiden, Thomas; Investor: Rigmaiden, Thomas; Captain: Callan, Patrick; Investor: Forbes William; Investor: Gregson William (Jr). The voyage began at Liverpool on 4 December 1797. Principal recorded place where captives were acquired: Bonny (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Kingston. Estimated mortality during the crossing: 10.0%. Recorded outcome: Voyage completed as intended.