The slave ship Union left the African coast carrying enslaved Africans toward Haiti. About 240 people had been taken aboard.

Vessel: Union; flag: France; estimated standardized tonnage: 146.3. People recorded in connection with the voyage: Investor: Luynes, Augustin de; Captain: Fouré, Jean. The voyage began at Nantes on 3 January 1739. Principal recorded place where captives were acquired: Anomabu (Gold Coast). Principal recorded disembarkation place: Saint-Marc. Recorded duration of the captives' Atlantic crossing: 148 days. Estimated mortality during the crossing: 34.0%. Recorded outcome: Voyage completed as intended.