Her father was a member of PPS Lewica, a socialist party, as well as an uncle of the writer Stefan Kisielewski.

In the first days of the Nazi occupation, Sawicka organised help for political prisoners and published the first underground publication entitled Wolność (Freedom).

In 1940, this group was dissolved due to ideological conflict and irreconcilable differences on the issue of fighting against Hitler while Stalin was collaborating with him.

Under the occupation, the Union of Youth Struggle was chiefly responsible for propaganda in the paper Walka Młodych based in the Warsaw area.

There were also streets named for her in Biała Podlaska, Gliwice, Gdańsk, Piotrków Trybunalski, Świdnica, Sopot, Dusznice-Zdrój, Białogard, Dzierżoniów, Kościan, Bytom, Koszalin, Jaworzno, Jastrzębie-Zdrój, Sochaczew, Buków, Polkowice, Witaszyce, Darłowo, Kępno, Świętochłowice, Łęknica, Biskupiec, Włodawo, Wałbrzych, Rzepin, Siemianowice Słąskie, Dźwirzyno, Zawierciel, Warsaw, Żyrardów, Bielsko Podlaskie, Starachowice, Łobez, and Łódź.