Holding Institutions
- Center for the Studies of History and Culture of East European Jewry (Judaica Center) of the National University of Kyiv-Mohyla Academy in Kyiv, Ukraine17
- Landesarchiv Berlin17
- T︠S︡entralʹnyĭ derz︠h︡avnyĭ istorychnyĭ arkhiv Ukraïny u Lʹvovi17
- Ludwig Boltzmann Institute for Digital History16
- Museum of Modern Art16
- Magyar Országos Levéltár15
- Österreichisches Staatsarchiv14
- National Archives (Great Britain)12
- Archiwum Państwowe w Warszawie11
- Instytut Polski i Muzeum im. Gen. Sikorskiego w Londynie11
- Dr. Peter Schur10
- Francisca Verdoner Kan10
- Otto Verdoner10
- World Zionist Organization. Central Zionist Archives10
- Yoka Verdoner10
- Mr. Glenn Kurtz9
- Asociaţia Culturală Minerva8
- John E. Allen, Inc.8
- National Center for Jewish Film8
- Yiṿo in Argenṭine8