The slave ship May departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Antigua and Barbuda.

Vessel: May; flag: Great Britain; rig: Brigantine; estimated standardized tonnage: 128.3. People recorded in connection with the voyage: Investor: Davenport, William; Investor: Parker, John; Investor: Kennedy, Robert; Captain: Barkley, John. The voyage began at Liverpool on 29 May 1774. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Saint John (Antigua). Recorded outcome: Voyage completed as intended.