In September 1941 Max Cosman was enrolled in Grade 5a of the grammar school, Lyceum, in The Hague.
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.