Maurits Polak was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. He was 10 years old when he died. J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 64
Roosje Polak-Halberstadt was the daughter of Louis Halberstadt and Rieka Jacobs. Addition of a visitor of the website
In addition, a Jokos file (number 54665) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann…