Retiefstraat 30 II, Amsterdam Previous house Next house Residents Izaäk Bont 1921 - 1942 Hendrika Bont-Halberstadt 1922 - 1942 Residents in February 1941 Jacob Zwaaf 1903 - 1943 Rebecca Zwaaf-Soesan 1908 - 1943 Rachel Zwaaf 1928 - 1943