's Gravesandestraat 32 III, Amsterdam Previous house Next house Residents in February 1941 Jakob Wolf Unger 1871 - 1943 Erna Unger-Schumir 1884 - 1943 Residents in February 1941 Salamon Berek Sonenberg 1910 - 1944 Zilla Sonenberg-Knopf 1908 - 1943