Between 1929 and 1932, based in Dresden, she headed up the women's secretariat of the party's regional leadership team ("Bezirksleitung") for Saxony.
In 1925 Nischwitz was elected to chair the Saxony Red Women's and Girls' League ("Roter Frauen- und Mädchenbund" / RFMB).
In 1928 she was sent to Moscow as a delegate at the sixth world congress of the Communist International where she spoke on women's matters ("Frauenfrage").
[1] In 1932 Nischwitz resigned from her senior party positions because of a personal crisis that combined political and family elements.
One day before the state election of May 1930 her husband, Paul Nischwitz, resigned from the Communist Party and joined the Social Democratics.
Based on agreements between the victorious powers the western two thirds of Germany were now to be divided into military zones of occupation.
Although there may have been hopes that the SED would take root across Germany, in reality the effect of the exercise was restricted to the Soviet zone.
[1] During her final years she lived in Frohnau, a historical mining village in the hills to the south of Dresden.