Theresia Degen was a daughter of Samuel Degen and Doortje Blaaser. She married in 1928. Stadsarchief Amsterdam, archiefkaart and gezinskaart Samuel Degen
In addition, a Jokos file (number 16926) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.