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.
Robert Aubrey Miller (1854-1941) graduated from Willamette University in Salem, Oregon in 1878, and began a law practice in Jacksonville, Oregon, served in the Oregon House of Representatives, and was as an aide to Governor Sylvester Pennoyer. The collection contains correspondence, letterpress volumes, a diary, proceedings of the Jacksonville District Pomona Grange (1876-1879), a Willamette University memorandum book, scrapbooks of clippings, speeches, Southern Oregon District Fair material, books of poems, excerpts from The Hesperian, a literary magazine edited by Miller, and photographs.