Juda Bierman and Wilhelmina van Rooij had six children. Besides the here mentioned children they had a daughter Maria Johanna.
Stadsarchief Amsterdam, archiefkaart Juda Bierman
In addition, a Jokos file (number 35724) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.