Blasiusstraat 61 I, Amsterdam Previous house Next house Residents in February 1941 Head of Wertheijm and his family date unknown Gisela Wertheijm-Lustig 1907 - 1942 Leonard Wertheijm 1933 - 1942 Ludwig Salomon Wertheijm 1931 - 1942 Sabine Rachel Wertheijm 1936 - 1942