Roerstraat 18 II, Amsterdam Previous house Next house Residents in February 1941 Jacob Samuel Roos 1891 - 1943 Rachel Roos-Musaph 1892 - 1943 Hans Roos 1922 - 1943 Enny Margaretha Roos 1928 - 1943 Karl Otto Simon 1904 - 1944 Family member of Karl Ottto Simon and his family date unknown Residents Johanna de Vries 1872 - 1943