Sophia (Fietje) Komkommer went to the van Detschool, the Jewish domestic science school, in the 'Hortus plantsoen'. According to tradition she was a cheerful, nice girl. Addition of a visitor of the website
In addition, Jokos files (numbers 13887, 14544) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos files reveal that a claim was lodged for compensation for looted jewellery (S-claim, number 10/641).