Rubuta ci gaba don wannan sakin layi - A lokacin Yaƙin Duniya na II, Grzegorzewska ya yi aiki a matsayin mai aikin jinya, ya kasance mai aiki a cikin ƙungiyar juriya ta Poland, kuma ya koyar a Warsaw. Ta shiga Żegota kuma ta ba da taimako ga Yahudawa. Lokacin da aka 'yanta Poland
a cikin 1945, Grzegorzewska ya sake kunna Cibiyar Ilimi ta Musamman kuma a cikin shekaru biyar ya gabatar da karatun digiri na biyu da kuma karatun waje. A cikin 1950, yayin aiwatar da koyarwar Stalinist a Poland, an canza sunan makarantar zuwa Kwalejin Ilimi na Musamman () kuma an gabatar da tsarin karatun jihar. Ta yi gwagwarmaya da shirin jihar, tana son kare ilimi na musamman da nakasassu. Bayan narkewar 1956, cibiyar ta sake samun goyon bayan gwamnati kuma ta koma sunan ta na farko. Tsakanin 1957 da 1960, ya kasance babban farfesa a Jami'ar Warsaw. An girmama aikinta a cikin kimiyya da tsarin ilimin Poland tare da lambobin yabo da yawa.