Rozetta van Gelder, a daughter of Salomon van Gelder and Fogeltje de Lange, married Joseph Leendert van Gelder on 9 September 1903 in Assen, a son of Leendert Joseph van Gelder and Henderina van Vriesland.
City Archive of Amsterdam, archive card of Joseph Leendert van Gelder and website www.wiewaswi…
In addition, a Jokos file (number 60142) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.