Clara Goudeketting was a daughter of Levie Goudeketting and Heintje Moffie. She married 18 November 1906 in Amsterdam to Joseph van Kolm, a son of Jacob van Kolm and Helena Bromet.
City Archive of Amsterdam, family registration card of Levie Goudeketting and website www.wiewaswie.nl .
In addition, a Jokos file (number 13425) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.