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.

The Farmers Union Grain Terminal Association (FUGTA) was a cooperative grain marketing organization. Collection (1940-1956) contains correspondence, subject files, and miscellany kept during Harold M. Brown's years as a field agent for FUGTA.

The Montana CowBelles, Inc. is an organization of ranch women. Records (1952-1986) include general correspondence; minutes of board meetings, conventions, and workshops; organizational materials, including articles of incorporation and membership lists; subject files of materials from local CowBelles groups; writings on local ranches, ranchers, early settlers; and miscellany.

These records of the Montana Department of Agriculture consist of general correspondence (1941-1970) of commissioners Albert Kruse, Edward Wren, and Lowell Purdy, arranged by subject and correspondent; reports (1964-1969); and miscellany. (Photographs, printed materials, maps, and artifacts transferred to Photograph Archives, Library, and Museum respectively.)

Records (1912-1983) of the Montana Farmers Union consist of state convention materials (1943-1974); reports (1965-1975) of county and local union meetings; financial records; subject files; records of associated cooperative enterprises; correspondence (1965-1968) of the Education Department; and scrapbooks.

The Montana Stockgrowers Association was founded in 1884 to unite cattle and horse ranchers in Montana Territory. Records consist of account and general ledgers (1885-1907); cash books (1885-1907); a minute book (1885-1889); and a livestock brand record book (undated)