The slave ship Union arrived with enslaved Africans in Haiti. About 241 people had been taken aboard and approximately 201 arrived.

Vessel: Union; flag: France; estimated standardized tonnage: 128.3. People recorded in connection with the voyage: Investor: Fousqueré Duveau; Captain: Robinard, Ambroise. The voyage began at Nantes on 11 August 1770. Principal recorded place where captives were acquired: Windward Coast, place unspecified. Principal recorded disembarkation place: Cap Français. Recorded duration of the captives' Atlantic crossing: 101 days. Estimated mortality during the crossing: 17.0%. Recorded outcome: Voyage completed as intended.