Robert Jozef Dürheim arrived in Rotterdam as a German refugee on 15 December 1938. He was taken in at 1 Quarantainestraat, an assembly point for Palestine Pioneers. He left there on 17 April 1939 and moved to the Vondelhof, a school building on the Frederikstraat, adjacent to the Vondelpark in Amsterdam. The Vondelhof was also an assembly point for Palestine Pioneers. In September 1939 the Vondelh…