Hetty de Lange was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. She was 8 when she died. J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 49
In addition, a Jokos file (number 55491) 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-Rosenthal looting bank (L-claim, number 6965/14831).