Ka cika wannan jumla: A cikin ko kafin Agusta 1945 Tilly Spiegel ya koma Vienna inda ba a hana Jam'iyyar Kwaminis ba. Tabbas, Soviets sun yi amfani da tasirin su tare da sauran ikon mamayewa don tabbatar da cewa akwai 'yan gurguzu bakwai a cikin sabuwar gwamnati. Ta sake komawa kungiyar jagorancin jam'iyyar ta gari ("Bezirksleitung"), ta kasance memba a tsakanin 1945 da 1968. Bugu da ƙari, ta hanzarta shiga cikin aikin gina abin da daga baya ya zama &lt;a href="Documentation%20Centre%20of%20Austrian%20Resistance"&gt;Takardu na Takardu na Resistance na Austrian ("Dokumentationsarchiv des österreichischen Widerstandes" / DÖW) &lt;/a&gt;. Ta yi aiki tare da shugaban binciken DÖW,. Sauran da suka hada da tsohon abokin hamayyarta, Selma Steinmetz, tare da Jonny Moser da Herbert Rosenkranz. A cikin shekarun 1960 wadannan, Spiegel da sauransu sun kasance daga cikin masu bincike na farko a cikin zamanin National Socialist na Austria don mayar da hankali ga wadanda ke fama da mulkin. Moser yayi bincike kan zaluntar yahudawa yayin da Steinmetz ya mai da hankali kan yadda gwamnati ke kula da mutanen Sinti da Romani. Spiegel ya yi aiki a kan abin da ya faru da mata da 'yan mata da suka shiga cikin tsayayyar anti-fascist kuma Rosenkranz ya yi nazarin kwarewar Austria na' yan ta'adda.
Nuwamba 1938 pogrom ("Kristallnacht"). A ƙarshen shekarun 1960, tun kafin murkushewar Prague Spring, Spiegel ya bayyana cewa ya shiga cikin manyan "zargi na cikin jam'iyyar" game da hanyar da kwaminisanci ya yi bayan yakin. An san kadan game da shekarun ta na ƙarshe.