The slave ship S José Diligente Vulcano left the African coast carrying enslaved Africans toward Brazil. About 746 people had been taken aboard.

Vessel: S José Diligente Vulcano; flag: Portugal / Brazil; rig: Bergantim. People recorded in connection with the voyage: Investor: Souza, Francisco José de*; Captain: Álvares, Isidoro. The voyage began at Lisbon on 29 October 1803. Principal recorded place where captives were acquired: West Central Africa and St Helena, port unspecified. Principal recorded disembarkation place: Bahia, place unspecified. Recorded outcome: Bought at least one slave in Africa - subsequent fate unknown.