The slave ship Union left the African coast carrying enslaved Africans toward Haiti. About 268 people had been taken aboard.

Vessel: Union; flag: France; estimated standardized tonnage: 128.3. People recorded in connection with the voyage: Investor: Drouin; Investor: Dulac; Investor: Seigne, de; Captain: Berthelot, Ambroise. The voyage began at Nantes on 1 February 1768. Principal recorded place where captives were acquired: Bight of Benin, place unspecified. Principal recorded disembarkation place: Saint-Marc. Recorded duration of the captives' Atlantic crossing: 174 days. Estimated mortality during the crossing: 19.0%. Recorded outcome: Voyage completed as intended.