The slave ship Heureux departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Martinique.

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.