The slave ship Heureux left the African coast carrying enslaved Africans toward Martinique. About 402 people had been taken aboard.

Vessel: Heureux; flag: France; estimated standardized tonnage: 343.1. People recorded in connection with the voyage: Captain: Clarck, Thobie; Investor: Clarck, Thobie; Investor: Grou, Guillaume. The voyage began at Nantes on 24 February 1749. Principal recorded place where captives were acquired: Whydah, Ouidah (Bight of Benin). Principal recorded disembarkation place: Martinique, place unspecified. Recorded duration of the captives' Atlantic crossing: 101 days. Estimated mortality during the crossing: 5.0%. Recorded outcome: Voyage completed as intended.