Willemsparkweg 56 II, Amsterdam Previous house Next house Residents Joseph Tas 1867 - 1943 Sara Tas-van Sweeden 1867 - 1943 Residents in February 1941 Salomon Polak 1881 - 1942 Bertha Polak-Rubens 1878 - 1942 Child of Salomon Polak and his family date unknown