Jacob Polak was a son of Philip Polak and Catharina de Jong. He married Rachel Stork in Amsterdam on 6 November 1907, a daughter of Levie Emanuel Stork and Anna van Baren. The couple had four children, of whom three have survived the Holocaust. Only his daughter Elisabeth has been killed during the …
In addition, a Jokos file (number 9239) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for looted securities or bonds. (W-claim, number 9451/16498).