The Montana Council of Defense was established during World War I to coordinate county war efforts. It also investigated cases of alleged disloyal activities. Records (1916-1921) include minutes, correspondence, subject files, testimony and exhibits for hearings and special investigations, membership lists, and correspondence of various county councils of defense.

William Wheeler (1824-1894) served as U.S. Marshal and as Montana Historical Society Librarian in Helena, Montana. Papers consist of outgoing correspondence (1859-1860, 1869-1871), including discussion of problems of Montana Territorial law enforcement; and biographical writings on Montana pioneers. [Portions same as MF 12].

The Women's Helena for the Capital Club was a Helena, Montana, based organization promoting the establishment of Helena as the state capital of Montana. Records (1894) include incoming correspondence; county lists; a record book containing correspondence, financial reports, speeches, resolutions, clippings, and broadsides; and miscellany.