The People's Voice was a weekly newspaper published in Helena, Montana, by H.S. "Cap" Bruce, and later by Harry L. Billings. Records consist primarily of general correspondence (1937-1966); and subject files (1930s-1960s) on a wide variety of topics, including Montana politics, farmers unions, labor, state government, and public utilities.

Frances Merriam (b. 1899) served as the Executive Secretary of the Committee for Paradise Dam, an organization that promoted the construction of the Paradise and Knowles dams in western Montana. Papers (1948-1972) consist primarily of subject files and correspondence concerning the dams and her work in the Montana Democratic Party.

These U.S. Federal Power Commission records consist of hearing materials in a case involving the failure of the Montana Power Company to apply for a license to operate its hydroelectric dams on the Missouri River and tributaries. Exhibits in the case (including steamboat logs, diaries, articles, clippings, etc.) sought to document whether the Missouri River was navigable above Fort Benton. [FPC Docket #IT-5840.]