The police commissioner of Leiden requested that Abraham Poons, representative, and his wife Vrouwtje Cohen, both living in Heerengracht 18, Leiden, be located, detained 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 1, 7 January 1943, 9, notice 14
In addition, a Jokos file (number 13349) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.