Louis Degen and Rebecca Berger had two children. One child survived the war by going into hiding. (Marcus, usually called Max).
Addition of a visitor of the website
In an episode of Hart van Nederland the surviving child speaks about this family.
In addition, a Jokos file (number 32204) 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 2591/20872).