The Clyde Duffy Papers, 1911-1973, consist mainly of correspondence. Duffy was an active member of the North Dakota Republican Party, and this is reflected in the large amount of political correspondence in the collection. Also included are correspondence, reports, and legal materials related to his service as a Special Investigator appointed by Governor John Moses. Other materials include texts of his speeches, legal documents, and a 1973 autobiography titled “Observations Along the Way.”

The collection was reprocessed in January 2005; materials housed in Boxes 5 and 6 were rearranged and placed into acid-free folders. Researchers should note that some items listed as being in these two boxes were not found when the collection was reprocessed. The items in question consisted mainly of various political pamphlets collected by Duffy.

Several publications were separated and added to the North Dakota Book Collection. These includes four issues of The Red Flame, as well as several publications of the United States Senate Committee on Privileges and Elections. In 1941 and 1942, this committee investigated claims the Langer was not entitled to his Senate seat due to misconduct “as a public officer and as an attorney at law.” The committee ultimately recommended that Langer should not be seated, although the entire Senate voted 52-30 to seat Langer.