Robert's index card from the Jewish Council card file in Amsterdam (photo source: arolsen-archives.org). The information office of the Netherlands Red Cross (NLRC) in The Hague created a file for Robert after the war under dossier number 120,366?. It contained all the information known at that time about him and his persecution. The date of Robert's arrival at transit camp Westerbork ("Wbk"), 26 August 1943, was noted in the upper-right corner. His deportation date to Auschwitz ("Tr. 31.8.43") was written in red pencil.
The NLRC dossiers are housed in the Nationaal Archief in the Hague. In 2021 the NLRC announced its intention to transfer the Jewish Council Index Card Archive to the Joods Cultureel Kwartier, which plans to exhibit the archive at the Nationaal Holocaustmuseum beginning in late 2022.
