In September 1941 Nathan Polak was enrolled in Grade 1 of the commercial school (day school) in The Hague. In October 1941 Nathan Polak had to transfer to Grade 2b of the Joods Lyceum.
Data on Jewish students at schools in The Hague.The records of the Joods Lyceum in The Hague contain Lists of students at schools in The Hague, including a list of students at the Joods Lyceum. These records are kept at the municipal archive in The Hague.