Montana Agriculture and Ranching Manuscript Finding Aids
- Archives Accession 00002 Agricultural Economics Department (Records, 1912-1949)
- Archives Accession 00003 Wilson, M. L. (Correspondence and publications, 1935-1960)
- Archives Accession 00021 Extension Service (Annual reports, 1912-1970)
- Collection 3 Stone Family (Diaries, letters, reminiscences, and papers, 1849-1984)
- Collection 27 Park Poultry Producers Association (Records, 1923-1941)
- Collection 35 Simpson, Milton (Collection, 1885-1942)
- Collection 54 Duffield, Jessie (Reminiscence, ca. 1959)
- Collection 96 Considine, Winifred (Diaries, 1918-1963)
- Collection 188 Taylor, Olney (Papers, 1882-1900)
- Collection 229 Wheeler, John "Lou" (Papers, 1920-1930)
- Collection 246 Brown, Joseph T. (Papers, 1887-1917)
- Collection 331 Brewster Family (Business and legal papers affiliated with ranch operations, 1907-1964)
- Collection 357 McCollum, Ernest (Diaries, 1908-1952)
- Collection 362 Anderson, Conrad V.(Papers, 1954-1974)
- Collection 385 Brown, Ed C. (Personal and business papers, 1912-1964)
- Collection 397 Niven, Francis L. (Business and family papers, 1901-1982)
- Collection 416 Phelps, Cassandra O. (Papers, 1914-1945)
- Collection 423 Bailey, David J. (Reminiscence, 1900)
- Collection 427 Riebeth, Carolyn Reynolds (Letter, January 28, 1966)
- Collection 447 Damm, Mathew (Diaries, 1915-1966)
- Collection 451 Bower, Chester A. (Diary, 1915-1918)
- Collection 504 Record of Events While Ranching on Billman Creek (Diary, 1886-1887)
- Collection 532 Abbott-Stuart-Matejcek Family (Business records, personal papers, and photographs, 1894-1939)
- Collection 536 Castle Mountain Cattle and Sheep Company, 1877-1971 (Diaries, scrapbooks and memorabilia, 1871-1942)
- Collection 538 Muir Family (Ranch financial records and photographs, 1915-1956)
- Collection 560 Gallatin Farmers' Alliance No. 4 of Montana (Records, 1889-1892)
- Collection 570 Golden Valley Historical Society (Records, 1966-1967
- Collection 587 Green, Jesse R. (Manuscripts and research papers, 1910-1967)
- Collection 637 Cowan, Mary Payne (Diaries, 1890-1896)
- Collection 642 George, Victor E. (Reminiscence transcript, 1968)
- Collection 643 Cowan Family (Family, business, and farming papers, 1893-1966)
- Collection 646 Columbus Creamery Company (By-laws, 1906)
- Collection 669 Story-Work Sheep Company (Records, 1916-1920)
- Collection 751 Hart Family (Family and ranch papers, 1835-1965)
- Collection 766 Thomas Brothers (Day book, 1881-1889)
- Collection 791 Seamans, L. Christine Bliss (Papers, 1907-1970)
- Collection 809 Baxter, Robert A. (Papers, 1875-1893)
- Collection 914 George, Victor E. (Diary, 1907-1931)
- Collection 932 Strode Family (Family history and business papers, Stirrup Ranch papers, and literary manuscripts, 1896-1969)
- Collection 1016 Gallatin County Farm Bureau (Tax study, 1932)
- Collection 1057 O'Donnell, I. D. (Papers, 1884-1947)
- Collection 1177 Aitken, Walter (Water rights case book, 1909)
- Collection 1409 Johnson, Warner (Letters, 1889-1892)
- Collection 2052 Paugh, George (Personal papers, ranch and family financial records, 1940-1966)
- Collection 2056 Anderson, Jesse G. (Papers, 1914-1925)
- Collection 2063 Jackson, Oakley R. (Oakley R. Jackson Papers, 1920-1945)
- Collection 2069 Thompson-Wing Ranch (Hereford cattle sale catalogs and promotional brochures, 1915-1956)
- Collection 2100 Wilson, M. L. (Correspondence, papers, publications, and photographs, 1935-1960)
- Collection 2107 Stith, Beryl (Papers, 1883-1963)
- Collection 2109 Herford, Helen Brooke (Letters, ranch papers, and photographs, 1886-1957)
- Collection 2111 Myrick, Hobart D. (Papers, 1901-1970)
- Collection 2269 Fulton, Dan (Personal, professional, and research papers, 1912-1990)
- Collection 2316 Post, Arthur H. (Personal and Professional Papers, 1920-1982)
- Collection 2318 Montana Agricultural Statistics Press Releases (Press releases pertaining to crop and livestock statistics, 1920-1982)
- Collection 2395 Manhattan Malting Company (Records, 1895-1914)
- Collection 2422 Davis, Ozro P. (Papers, 1888-1910)
- Collection 2447 Montana Beef Performance Association (Records, 1956-1988)
- Collection 2451 Hormay, August "Gus" Ludwig (Papers, 1900-1999)
- Collection 2464 Winnecook Ranch Company (Records, 1882-1999)
- Collection 2474 Kelly Investment Company (Records, 1915-2004)
- Collection 2478 Thorpe, Philip (Papers, 1875-1880)
- Collection 2487 Johnson, Mamie Ader (Letter, November 25, 1925)