Bernhard Adler and Catharina Rensburg had two sons. One of them, Richard, died before the war of meningitis at the age of sixteen. The other son survived the war.
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In addition, a Jokos file (number 36152) 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 10710812).