Waldeck Pyrmontlaan 10 II, Amsterdam Previous house Next house Residents in February 1941 Ferdinand Koetzer 1875 - 1943 Mathilda Koetzer-Langendijk 1876 - 1943 Family member of Ferdinand Koetzer and his family date unknown Residents in May 1940 Head of Hartogh and his family date unknown Selma Flora Hartogh-Koetzer 1918 - 1944