Rebecca Dingsdag went into hiding with one of her children, who was married to a non-Jewish person, in Haarlem. She was betrayed in 1943 and deported to the Hollandsche Schouwburg. Despite efforts to get her out she was sent to Westerbork. It is unknown when and where she died.
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Rebecca Dingsdag married Hartog Scheffer in 1902 in Amsterdam. He passed away in 1911. They had two children: 528004 and a child that survived the war.
Stadsarchief Amsterdam, archiefkaart Rebecca Dingsdag