In a letter dated 16 October 1941 to Professor Grewel, the Director Professor of the Anatomical-Embryological Laboratory in Amsterdam made it known that he would not grant leave to eleven students to continue their studies. Those eleven students included Adolph Roozendaal.
Jewish Historical Museum, Documents collection, inv.nr 915
This person is commemorated on a memorial in Amsterdam. More information on this memorial can be found (in Dutch) on the website of the Nationaal Comité 4 en 5 mei.