Caroline van Weren was a daughter of Levie van Weren and Saartje Roeper. She married Joseph Vischjager in 1921 in Amsterdam. He passed away the next year. She remarried Joseph Truder in 1923 in Amsterdam.
Stadsarchief Amsterdam, archiefkaart Caroline van Weren
In addition, a Jokos file (number 17280) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.