Walter S. Bowman (1865-1938) was a professional photographer who worked in Pendleton, Oregon, from the late 1880s to the mid 1930s. Bowman's photographs document daily life in Eastern Oregon, including special events such as the Pendleton Round-Up. The collection consists of almost 800 negatives and prints representative of the span of the photographer's work, but his noted images of tribal people were largely destroyed after his death.
Orla G. Allen (c. 1879-?), commonly known as O.G. Allen, was a professional photographer operating in Pendleton, Oregon, circa 1910-1920. "Electric Studio" is a franchise name that appeared in locations throughout the West. The collection consists of five images and documents rodeo people and activities, and a Pendleton event. Other O.G. Allen images are available in other collections.