Master Files #48-342, Tabloid, The Key to the Mystery, 1948, id121529, Box: 118, Folder: 7, Item: 21. Jewish Federation Council of Greater Los Angeles, Community Relations Committee Collection, Part 3, URB-CRC3. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/96115 Accessed June 19, 2026.