Sara Fles was a daughter of Hijman Fles and Rika Fles. She married Samuel Koperberg from London in Amsterdam on 3 July 1918, a son of Henry Koperberg and Harriet Freeland.
Sara came from a family with 12 children, of whom three children have died already at young age. Her other siblings were Isaac, …
In addition, Jokos files (numbers 20934, 20935) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.