Rudolf de Haas studied medicine in Groningen, where he sat for his medical finals on 11 May 1934. Rudolf de Haas opened his practice at 9 Grootestraat in Rijssen.
J.H. Coppenhagen, Anafiem Gedoe‘iem. Overleden joodse artsen uit Nederland 1940-1945 (Rotterdam 2000) 97-98
Rudolf de Haas was a son of Lion de Haas and Carolina Polak and a brother of Simon Bertus de Haas.
Addition of a visitor of the website
A memorial in Rijssen commemorates the Jewish victims of this town. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.