She gained international fame posthumously following the publication of her letters to her five children which she wrote during her imprisonment in the labour camp Breitenau.
Firstly she worked on a temporary employment at a doctor's practice and the "Israelitischens Asyl für Kranke und Altersschwache" in Cologne.
She was arrested, interrogated and due to violation of the Reichsgesetz of 17 August 1938, was sent to the labor education camp Breitenau near Guxhagen, south of Kassel, under dubious circumstances.
Until today it has remained unclear to what extent Ernst Jahn tried to save the life of his ex-wife by pleas to the responsible Gestapo in Kassel or the Reich’s security main department in Berlin.
Prior to her deportation she managed to smuggle her children's letters out of Breitenau: they ended up at her son's, who kept them without the knowledge of his sisters until his death in 1998.