3 finding aid(s) found containing the word(s) United States. Army. Signal Intelligence Service.

  1. Alexander Vassiliev papers, 1895-2011

    110 items ; 11 containers ; 4.2 linear feet ; 168 digital files (413.3 MB). -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Journalist, author, espionage historian, and former KGB operative. Notebooks, file guide, concordance, legal documents, and notes compiled by Vassiliev from KGB files relating to KGB espionage activity in the United States during the 1930s through the early 1950s. Digital files include material relating to VENONA, the code name for the U.S. Army's Signal Intelligence Service's project to analyze...

  2. John J. Walsh papers, 1933-2004

    3,000 items ; 10 containers ; 4 linear feet. -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Federal Bureau of Investigation agent. Correspondence, writings, and research material relating to Walsh’s career as a Federal Bureau of Investigation agent and as an investigator for congressional committees and executive branch agencies. Includes Walsh’s unpublished memoir and research files relating to the Venona project and to Matthew Silverman, a figure in the Alger Hiss case.

  3. Venona Project records, 1940-1996

    21 items ; 3 containers ; 1.2 linear feet. -- Manuscript Division, Library of Congress, Washington, D.C.

    Summary:

    Records relating to the Venona Project undertaken by the United States Army Signal Intelligence Service to examine encrypted Soviet diplomatic communications during World War II.