Nico Prins had gone into hiding with his wife Suze Kogel and four others in the Valeriusstraat in Amsterdam, namely Lodewijk Jack Gompertz, his grandmother Kaatje Gompertz-Goudsmit, Saliena Vos and Heinz Alex Schulenklopper. They were given up to the police and were picked up on 22 September 1943 by members of the Kolonne Henneicke.
A. van Liempt, Kopgeld. Nederlandse premiejagers op zoek naar joden, 1943 (Amsterdam 2002) 76
In addition, a Jokos file (number 1667) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.