Guest house 'Koopman' Roerstraat 44 II, Amsterdam Previous house Next house Residents Judik Koopman 1881 - 1942 Esther Vet-Witmond 1869 - 1942 Anna Katzenstein-Raphael 1884 - 1944 Sara Dimant 1881 - 1942 Elisabeth Oppenheimer-de Groot 1878 - 1943 David Kinsbergen 1919 - 1943 Aaltje Fortuijn 1910 - 1943