In addition, a Jokos file (number 1962) 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 4675/14235).
At the request of the Joodsche Raad the twins 539805 and 539806 lived with them.