Samuel Hagenaar and Anna Dikker were the parents of 523065.
Stadsarchief Amsterdam, archiefkaart Philip Hagenaar
In addition, a Jokos file (number 32738) 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 4617/2801).