The slave ship Louisa left the African coast carrying enslaved Africans toward Grenada. About 275 people had been taken aboard.

Vessel: Louisa; flag: Great Britain; rig: Ship; estimated standardized tonnage: 144. People recorded in connection with the voyage: Captain: Johnson, Robert; Investor: Johnson, Robert; Investor: Greaves, Joseph; Investor: Denison, William (Jr); Investor: Bancroft, Thomas; Investor: Lorimer, Ellis; Captain: Christian, David; Investor: Christian, David. The voyage began at Liverpool on 3 June 1791. Principal recorded place where captives were acquired: New Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Grenada, place unspecified. Recorded outcome: Voyage completed as intended.