Isaäc Blitz and Aaltje Kopee had several children, of whom Elias, Salomon and Klara also died during the war.
Stadsarchief Amsterdam, gezinskaart Isaäc Blitz
In addition, a Jokos file (number 60011) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.