Jan Blankenstraat 20, Den Haag Previous house Next house Residents in April 1942 Jakob Frank 1871 - 1942 Sophia Frank-de Bok 1879 - 1942 Residents in April 1942 Sander van Leeuwen 1889 - 1943 Henriette van Leeuwen-Wolff 1891 - 1943 Isaac van Leeuwen 1914 - 1943 Elisabeth van Leeuwen 1911 - 1942