Born in Pendleton, Oregon, Milne earned an A.B. degree in Mathematics from Whitman College in 1912 and A.M. and Ph.D. degrees from Harvard University in 1913 and 1915. He served on the faculty of Bowdoin College from 1915 until 1918 and then spent one year working with a group of mathematicians at Aberdeen Proving Ground. In 1919, he returned to Oregon as a faculty member in mathematics at the University of Oregon. In 1932, he became head of the Mathematics Department at Oregon State College, a position he held until his retirement in 1955. Milne was a pioneer in numerical analysis and computer mathematics and was known around the world for the "Milne method" of solving differential equations and for his three textbooks and many technical papers. He continued his research after retirement and was awarded the OSU Distinguished Service Award posthumously in June 1971. The Milne Computer Center was dedicated in his name in April 1972.
Richard Jeffrey Nichols was the librarian at Oregon Agricultural College from 1902 to 1908. A native Oregonian, Nichols was the first librarian not educated at OAC, earning his degree from Willamette University.
Charles Buren Mitchell (1886-1955) joined the faculty of Oregon Agricultural College in 1920 to head the new Department of Speech. As department head, he established and developed the dramatics and forensics programs at Oregon State. More than 200 plays were produced under his administration. Mitchell retired in 1952; the College Playhouse was renamed in his honor as the Mitchell Playhouse in 1961.
William Arthur Jensen (1881 -1945) served as executive secretary for presidents Kerr and Peavy and was a member of the college's administrative council. He came to OAC in 1907. After President Kerr was in an auto accident and needed nearly a year to recover, Jensen served as the de facto president of OAC during Kerr's hiatus. The campus gates were dedicated to Jensen for his strong support of WPA art projects on campus during the 1930s.
Mahlon Ellwood Smith was an English Professor, Dean of Basic Arts and Sciences, and Dean of the Lower Division for Oregon Agricultural College from 1919 until his retirement in 1949. He was an authority on the English fable and published extensively in philological and educational journals.
Greer succeeded Margaret Snell as head of the Department of Domestic Science and Art in 1908, and was named the first dean as a result of President Kerr’s academic reorganization of the college. She served until spring 1911. Greer was a graduate of Vassar College and spent ten years as an instructor at New York’s Pratt Institute prior to coming to OAC.