Sonja Cohen Rodrigues married 13 July 1942 in Amsterdam to Meijer Waterman, a son of Leendert Waterman and Klaartje Rijxman.
City Archive of Amsterdam, archive cards of Sonja Cohen Rodrigues and Meijer Waterman .
In addition, a Jokos file (number 13713) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.