Addition

Nathan van Kleef and his family

Nathan van Kleef and Bloeme Koopman had a son Mozes.
Stadsarchief Amsterdam, archiefkaart Mozes van Kleef

In addition, a Jokos file (number 35272) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.