Herbert Peet (1892-1959) was a Great Falls, Montana, newspaperman and amateur historian. Collection consists of research notes on Montana history copied from various sources; clippings; history articles; and Peet's writings, including a manuscript on Governor Samuel T. Hauser and a day-to-day chronicle of Hauser's career.

Arlyne Reichert was a 1972 Constitutional Convention delegate from Cascade County. Reichert served on the Legislative Committee and worked to gain support for a unicameral legislature. She served as a legislator in the 46th Montana Legislative Assembly from 1979 to 1981. The collection (1971-1980) consists primarily of correspondences to and from her constituents during the Convention and her legislative term, subject files, clippings, and print material on topics important to her.