- Biography Joseph McCarthy: https://en.wikipedia.org/wiki/Joseph_McCarthy
- Laws under the Constitution: https://caselaw.lp.findlaw.com/data/constitution/amendment05/
- Entire set of McCarthy Transcripts: http://www.senate.gov/artandhistory/history/common/generic/McCarthy_Transcripts.htm
- America's National Archives: https://www.archives.gov
- Biography of Senator Pat McCarran: https://en.wikipedia.org/wiki/Pat_McCarranl
- General survey of the 1950's Red Scare: http://web.archive.org/web/20090708125800/http://www.spartacus.schoolnet.co.uk/ColdWar.htm [via Wayback Machine]
- Loyalty oaths: https://oac.cdlib.org/view?docId=tf7j49n99g&doc.view=entire_text&brand=lo
- University of Washington's curriculum web archive section about Professors fired during the McCarthy Era: https://depts.washington.edu/labhist/cpproject/index.shtml