- 1911: Born near Jihlava, Moravia, Austro-Hungarian Empire, then lived in Moravske Budejovice, Czechoslovakia
- November 1942: Committal to forced labour in Berlin
- Forced labour for the Deutsche Reichspost at the post office at Anhalter Bahnhof
- Housed at the camp of the Reichspostdirektion in Lichtenrade.
- Moved to another camp after an air raid
- Worked as painter
- 1996 Testimony an die Berliner Geschichtswerkstatt
- Josef Kroupa died on January 26, 1998.