In addition, a Jokos file (number 50019) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
Esther de Leeuwe was the daughter of Hijman de Leeuwe and Engelina Querido. On February 24, 1940, she married Hijman Nikkelsberg in Amsterdam. Together they had a son Louis, and a daughter, Estella Judith. They were all murdered at Auschwitz