The slave ship Heureux left the African coast carrying enslaved Africans toward Haiti. About 560 people had been taken aboard.

Vessel: Heureux; flag: France; estimated standardized tonnage: 343.1. People recorded in connection with the voyage: Investor: Grou, Guillaume; Captain: Clarc, Toby. The voyage began at Nantes on 30 May 1751. Principal recorded place where captives were acquired: Whydah, Ouidah (Bight of Benin). Principal recorded disembarkation place: Cap Français. Recorded duration of the captives' Atlantic crossing: 144 days. Estimated mortality during the crossing: 20.0%. Recorded resistance: Revolt by enslaved people. Recorded outcome: Voyage completed as intended.