Isaac Tas married Greta Speijer in 1928. The couple had two children: Levie and Marianne. The couple got divorced in 1939. In June 1941 they remarried.
Addition of a visitor of the website
In addition, a Jokos file (number 001732) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.
Biography