Isaac Santen was a son of Benedictus Santen and Saartje Winnik. He married to Henriette van der Bijl on 31 January 1940 in Amsterdam, a daughter of Joseph van der Bijl and Essier van Stratum.
City Archive of Amsterdam, archive card of Saartje Winnik and Henriette van der Bijl .
In addition, a Jokos file (number 40665) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.