1. Anonymous letter, Minidoka Relocation Center. (1942, October 9). (Reel 88, Folder Miscellaneous Reports). Records of the War Relocation Authority 1942-1946: Field Basic Documentation Located at the National Archives, Washington, DC.
2. Assistant Project Director, Manzanar Relocation Center. (1942, August 4). [Letter to Admiral R. P. McCullough, District Intelligence Officer] (Record Group 210, Entry 48, Box 221, Manzanar Relocation Center Central Files, Folder 22,222), National Archives and Record Administration, Washington, DC.
3. Baker J. C. (1943, February 16). [Chief, Office of Reports, War Relocation Authority (WRA), to Dillon S. Myer, Director] (Record Group 210, Entry 16, Box 159, Folder 22,222#1), National Archives and Record Administration, Washington, DC.