The Haarlem police commissioner requested that David Hamburger be located, detained and brought to trial. He had left his place of residence without the required authorization. This description referred to Jews who had gone into hiding.
Algemeen Politieblad, nr 51, 24 December 1942, 1440, notice 325…
In addition, a Jokos file (number 6988) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.