Roosje Halberstadt has been deported from Mechelen to Auschwitz with Convoy III, departing 15 August 1942 and arriving in Auschwitz on 17 August 1942. Most likely, Roosje has been directly killed upon arrival there.
Memorial of the Deportations of the Belgian Jews and the Dossier of Foreigners of the City of Antwerp, 201695/760-808.