Rollin H. McKay was a Missoula, Montana, photographer during the first half of the twentieth century. His extensive collection of images documents western Montana at this time, especially Missoula, the University of Montana, and numerous other towns and recreational areas.
Marion "Minnie" Porterfield was a member of the Montana Mountaineers, a hiking club based in Missoula, Montana from 1922-1956. The scrapbooks include photographs from several hikes in the Missoula area, Glacier National Park, and Canada. The photographs include members of the club, natural and man-made landmarks, as well as glaciers in Canada and Glacier National Park.