Emmalaan 21, Amsterdam Previous house Next house Residents Helene Franzmann-Knopf 1870 - 1943 Residents in February 1941 Curt Walther Blumenfeldt 1892 - 1944 Partner of Curt Walther Blumenfeldt and his family date unknown Walter Landauer 1902 - 1944 Family member of Widow Landauer-Lewinsohn and her family date unknown
