A yearbook belonging to Gert David Michalowitz, Menorah 5701, has been preserved and published (H. Heymans and J. Melkman, eds.). There is a handwritten note on the endpaper: 'To Gert Michalowitz, [in Hebrew] bar mitzvah, first-class pupil at the Joodsch Lyceum [secondary school that the Nazis force…
In addition, a Jokos file (number 31629) 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 …