Merwedeplein 7 II, Amsterdam Previous house Next house Residents in February 1941 Rudolf Blumenau 1899 - 1943 Gertrud Blumenau-Kahn 1898 - 1943 Bertha Blumenau-Raphael 1865 - 1943 Residents Hedwig Krolik 1869 - 1943 Julius Markan 1877 - 1943