The head of the family and his wife have survived the war. The here mentioned Isaac and Klara Bloemist were he brother and sister of the wife of the head of the family.
Stadsarchief Amsterdam, archiefkaart Mevr. Bos-Bloemist en Aaltje Bloemist-Nikkelsberg
In addition, a Jokos file (number 12808) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.