Judith Kleerekoper, a daughter of Gerrit Kleerekoper and Eva Betel married 30 May 1934 in Amsterdam to Willem Pront, a son of Hartog Pront and Sara Werkheim.
City Archive of Amsterdam, family registration card of Hartog Pront and archive card of Judith Kleerekoper .
In addition, a Jokos file (number 8647) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.