In September 1941 Rosina Maarsen was enrolled in Grade 6b of the municipal commercial secondary school for girls 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.
See for more information: W. de Lang, Slotakkoord der kinderjaren. Herinneringen aan het Joodsch Lyceum Fisherstraat. Den Haag 1941-1943 (Den Haag 2003)