The Wiedenhofen group included the engineer and businessman Josef Knab and master craftsman Ernst Klein , Josef Lauxtermann and Karl Kleppe .
Another group of opponents of Nazism was led by the lawyer Karl August Wiedenhofen .
The Karl August Wiedenhofen group included the engineer and businessman Josef Knab and master craftsman Ernst Klein , Josef Lauxtermann and Karl Kleppe .
Another group of opponents of Nazism was led by the lawyer Karl August Wiedenhofen .