Jules Biedermann was married to Ida Biedermann-Steinberger. She passed away in Brussels, Belgium in 1932.
The couple had two children: Justina and Justus.
Jules Biedermann married in Amsterdam on 26th April 1933 with Caroline Jacqueline Biedermann-Levi.
Justina Olman-Biedermann was married and resided at another address. Her daughter Ida Mirjam lived with her grandparents.
Jules Biedermann died i…