Jonas Hartwig de Vries was a son of Hartwig de Vries and Betty Rosenberg. He was married to Amalia Wolff. She passed away in 1938 in Leer (Germany). In January 1939 he moved to Musselkanaal where he lived in Sluisstraat 49.
Addition of a visitor of the website
In addition, a Jokos file (number 60276) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.