Holding Institutions
- United States Holocaust Memorial Museum110
- NIOD Instituut voor Oorlogs-, Holocaust- en Genocidestudies7
- Ms. Wilhelmina Juhlin6
- de Groot, Mr. Louis4
- Amsterdam (Netherlands). Stadsarchief2
- Arkhiyon ha-merkazi le-toldot ha-ʻam ha-Yehudi2
- Nationaal Archief (Netherlands)2
- Bundesarchiv (Germany)1
- Chronos-Media GmbH1
- Finland. Ulkoasiainministeriö1
- Francisca Verdoner Kan1
- Fred Angress1
- Gemeentearchief Midden-Drenthe1
- George R. Wheeler1
- Hoover Institution Archives1
- Magyar Országos Levéltár1
- Otto Verdoner1
- Romania. Ministerul Afacerilor Externe1
- Rose J. De Liema1
- United Nations Archives and Records Management Section1