Sara Allemans was a daughter of Levie Allemans and Klara Kadiks. She married in 1911 in Rotterdam. The marriage was dissolved by a divorce in 1930. She had three children, among whom Klara.
Stadsarchief Amsterdam, archiefkaart Sara Allemans
In addition, a Jokos file (number 16311) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.