The slave ship Três de Junho departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Três de Junho; flag: Portugal / Brazil; rig: Sumaca; estimated standardized tonnage: 108. People recorded in connection with the voyage: Captain: Lomba, José da. The voyage began at Rio de Janeiro on 12 May 1839. Principal recorded place where captives were acquired: Benguela (West Central Africa and St Helena). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 25 days. Recorded outcome: Voyage completed as intended.