Josua Polak was a son of Barend Josua Polak and Saartje Cohen. He married Johanna Maarssen in 1921 in Rotterdam.
Addition of a visitor of the website
In addition, a Jokos file (number 3578) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
Person is in the National Database of Victims of Persecution