Jacob Polak and Sara Brilleslijper had nine children. The three oldest children among them Salomon Polak (1914) and Lena Polak (1917) had already left their parents house in February 1941. One child of Jacob Polak and Sara Brilleslijper survived the war.
Addition of a visitor of the website
In addition, Jokos files (numbers 005156, 005159) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.