US National Archives
Nara: Prologue Magazine: Prelude to Mc Carthyism: The Making of a Blacklist
This lengthy article in the Prologue Magazine, a publication from the National Archives, details the operations of the Attorney General's List of Subversive Organizations, or AGLOSO, which was used in compiling information based on...
Michigan State University
Michigan State University: United States History Since 1920: Truman Loyalty Oath, 1947
In March, 1947, President Truman issued an executive order requiring that all Federal employees take a loyalty oath swearing loyalty to the United States. This was a time of fear of Communists and the Soviet Union. Read the entire...
Teaching American History
Teaching American History: Executive Order 9835
Find the executive order from President Harry S. Truman which outlined the loyalty review program to examine the loyalty of federal employees. This was issued in response to anti-Communist hysteria at the time.
American Presidency Project
American Presidency Project: Harry S. Truman: Executive Order 9835: Employees Loyalty Program
Primary source document of the executive order issued March, 1947, by Harry S. Truman, which outlines procedures for administering the Employees Loyalty Program in the executive branch of Government.
City University of New York
Ashp: A Postal Worker Testifies Before the Loyalty Security Program
Read the actions taken against a postal worker, who, as a federal worker, was subject to the vague loyalty oath. Find out what the charges where against him and what happened to him.
Teaching American History
Teaching American History: Government's Employee Loyalty Program
A descriptive statement by President Harry S. Truman outlining his administration's loyalty review program for government employees.
Federation of American Scientists
Fas: Counter Intelligence in World War Ii: Chapter 1
Provides information on Igor Sergeyevich Guzenko, the postwar expansion of FBI domestic intelligence, the Federal Loyalty-Security Program, and the FBI-Military Intelligence Jurisdictional Agreement.