The slave ship Jonge Willem departed from Guyana after the slave-trading stage of the voyage.

Vessel: Jonge Willem; flag: Netherlands; rig: Fregat; estimated standardized tonnage: 321.1. People recorded in connection with the voyage: Captain: Loef, Cornelis; Investor: Middelburgsche Commercie Compagnie. The voyage began at Zeeland on 7 June 1774. Principal recorded place where captives were acquired: Gabon (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Demerara. Recorded outcome: Voyage completed as intended.