Wilhelmine Theodore Marie Cauer, née Schelle, usually known as Minna Cauer (1 November 1841, Freyenstein - 3 August 1922, Berlin) was a German educator, journalist and radical activist within the middle-class women's movement. ;Other information: M. Schurgast's dates are unknown to the uploader. The photograph is from an American publication dated 1907. It is therefore PD in the US but might not be in the EU.