The mayor of Groenlo requested that Israël Mendels and his wife Aleida Hamburger be located, arrested and brought to trial. They were suspected of having changed their place of residence without the required authorization. This description referred to Jews who had gone into hiding.
Algemeen Politieblad, nr 48, 3 December 1942, 1354, notice 2999
In addition, a Jokos file (number 2451) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.