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

Vessel: Heureux; flag: France; estimated standardized tonnage: 257.3. People recorded in connection with the voyage: Investor: Jouanne de Saint-Martin; Captain: Lemire. The voyage began at La Rochelle on 15 June 1770. Principal recorded place where captives were acquired: Gorée (Senegambia and offshore Atlantic). Principal recorded disembarkation place: Port-au-Prince. Estimated mortality during the crossing: 12.0%. Recorded outcome: Voyage completed as intended.