Clara Lootsteen was a daughter-in-law of Jacob Franschman and Sophia Baars. She married on 19 February 1941.
Stadsarchief Amsterdam, archiefkaart Jacob Franschman
In addition, a Jokos file (number 34854) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.