Ellis Waldron was a professor of political science at the University of Montana-Missoula from 1951 to 1980. He also served as the dean of the graduate school from 1957 to 1961. He was an accomplished researcher and writer on the history of Montana politics and politicians, which is reflected in his research files.
K. Ross (Kenneth Ross) Toole was a well-known historian of Montana and the American West. This collection largely contains correspondence, research materials and writings, and faculty materials from 1961, when he was named the A.B. Hammond Professor of Western History at the University of Montana in Missoula, to his death in 1981.