Fonds consists of the photographic records and sample materials of Byron Harmon Photos, the photographic business of Byron Harmon and his successors; as well as the personal photographs of Byron Harmon. I. Scenic / commercial, 1907-1975, ca.7600 items. Primary component of series is film and glass negatives, 1907-1942, ca.6500 items. Also includes: postcard negatives and positives and production negatives to ca.1955; original prints; a wide range of sample products, such as postcards, enlargements and framing prints, calendars and viewbooks, mainly by Harmon business, some by other photographers; and lantern slides, ca.1913-192-, pertaining to Columbia Icefield Expedition, mountaineering, mountain landscapes, Indians, wildlife, Canadian Pacific Railway and Asian travel. Scenic / commercial series pertains to annual camps and expeditions of the Alpine Club of Canada in the Canadian Rockies and Selkirks, 1907-1913; private movie-making expeditions in the Canadian Rockies and Selkirks; mountain scenic views, primarily for postcard purposes; Banff events and development; skiing; birds and animals. Includes some material by Don Harmon and Lloyd Harmon, sons of Byron Harmon. II. Personal, 189- to 194-, ca.370 items. Includes: family photographs and views received from others; motion picture out-takes pertaining to world travels, 1930s; and 35 mm. transparencies, ca.1940, pertaining mainly to world travels, also mountain and prairie scenics.