Guide to Research CollectionsMontana Historical Society
Papers: 1867-1922. Ca. 1 foot. General correspondence, clippings, financial records, miscellaneous items, photographs, and a portrait.
University of Colorado Libraries
Papers: In Atlas Mining and Milling Company records, 1895-1924.
University of Montana
Papers: Correspondence in various collections.
University of Virginia
Papers: Correspondence in Paul Brandon Barringer papers, 1828-1963.