Materials include a copy of a letter to John Henry Smith from his son Nicholas G. Smith about John's testimony at the Smoot hearings at Washington D.C. In the letter, Nicholas thanks his father for standing up for his beliefs and mentions Winslow Farr Smith, his brother and Orson F. Whitney's eventual son-in-law. Dated January 6, 1905.

Contains handwritten diaries documenting the life of Reed Smoot as kept by himself. Includes discussion of his home and family life, thoughts, and other daily events. Dated 1880-1932.

Contains financial records of Reed Smoot. Includes bank account books, information on the Smoot Investment Company, and banking records. Contains checks and statements from the Commercial Bank of American Fork and the First National Bank of Salt Lake City, as well as other companies. Also includes checks and receipts. Dated 1827-1940.

Contains papers related to the legislative career of Reed Smoot. Includes hard bound copies of Revenue Bill and Tariff Duties for 1913, annotated by Senator Smoot and bound volumes of Tariff Acts, 1921-1922. Also contains writings and Newspaper articles relating to the senator's Home Economic Bill, and other bound volumes and newspaper articles. Dated 1913-1922.

Contains ephemeral artifacts and mementoes from the life and career of Reed Smoot. Includes objects such as Smoot's election pins, memorials written by others about Smoot, and Christmas cards. Also consists largely of invitations to events and calling cards. Dated 1877-1967.

Contains several rolls of microfilm, unlabelled. Includes labelled boxes of microfilm which are images of Smoot's diaries. Dated 1880-1966.

Contains files related to Smoot's involvement in mining. Includes correspondence and maps from the Big Indian Copper Company and records regarding the Gilsonite deal. Finally, pertains to work with Gold Chain Mining Company, Iron King Mining Company, Mascot Mining Company, and Western Australian Mining Laws. This demonstrates Smoot's work with these companies. Dated 1897-1938.

Contains newspaper clippings on the career of Reed Smoot. Primarily deals with news about the Smoot hearings, found in both Utah newspapers and other newspapers. Also contains articles on Smoot's opinion on prohibition and his election reports. Dated 1897-1942.

Contains photographs of Reed Smoot in various capacities. Includes pictures of him with Charles Lindbergh and President Calvin Coolidge. Also includes images of Smoot's early life and his relatives, particularly Abraham O. Smoot.

Contains addresses given by Smoot and articles authored by him. Includes his words on political and other subjects. Also contains his election addresses. Pertains to reclamation projects, prohibition, history, and religion. Newspaper articles address Smoot's life and success as a Senator. Dated 1883-1941.