Records (1903) of the Montana 8th Legislative Assembly consist of scattered House bills from the Regular Session, court papers regarding the impeachment of Edward W. Harney, reports of Senate Finance and Claims Committee from the Extraordinary Session, and miscellaneous materials.

Records of the Montana 9th Legislative Assembly consist of reports of Joint and Senate special committees; correspondence; subject files on contested elections; certificates of election; and petitions, including some for women's suffrage. [OVERSIZE MATERIAL: Box #1, map case]

Collection contains the records of the Montana 10th Legislative Assembly.

Records (1917-1918) of the Montana 15th Legislative Assembly consist of Regular and Extraordinary Sessions. The records include correspondence from the Dorcas Ladies' Aid Society and the Women's Christian Temperance Union, both of Butte, opposing legalization of prostitution; a Resolution honoring Buffalo Bill; and records of the High Court of Impeachment hearing the case of Charles L. Crum, judge of the 15th Judicial District.

Records (1919) of the Montana 16th Legislative Assembly consist of reports of Special Joint Committee to Investigate the Various Departments of the State Government, and the Special Committee to Investigate the Cost and Selling Price of Articles of Merchandise and Commodities and the Cost of Production and the Selling Price to the Consumer; Senate bills; and miscellany including subject files on contested elections.

Records (1921) of the Montana 17th Legislative Assembly consist of House and Senate memorial resolutions from the Regular Session; and minutes from the Extraordinary Session of the Senate.

Records (1923) of the Montana 18th Legislative Assembly consist of minutes of the Senate Special Committee to Investigate the State Board of Education and the Board of Examiners, and the Senate Special Committee to Investigate State Boards and Commissions.