Cato de Hond was a daughter of Levie de Hond and Judic de Hond. She married in Amsterdam on 13 January 1932 to Maurits Barnstein, son of Meijer Barnstein and Grietje Kooker.
City Archive of Amsterdam, archive card of Grietje Kooker and website www.wiewaswie.nl .
In addition, a Jokos file (number 21144) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.