Hartog de Boer and Mietje Bosboom were the parents of Judith.
Stadsarchief Amsterdam, archiefkaart Judith de Boer
In addition, a Jokos file (number 53907) 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 1).