Rachel Cohen, a daughter of Alexander Cohen and Sara van der Sluis, married 26 March 1930 in Amsterdam to Salomon van Gelder, a son of Joseph Leendert van Gelder and Rozetta van Gelder.
City Archive of Amsterdam, archive cards of Joseph Leendert van Gelder and Rachel Cohen .
In addition, a Jokos file (number 9157) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.