The Educational Activities Board at the University of Oregon comprised alumni and students and administered student activities and clubs at the university, except sports. The collection (1932-1948) contains records from the multitude of groups, programs, and clubs it oversaw including the Oregon Daily Emerald, Oregana, women's clubs, concerts and performances, and UO band and orchestra, among many others.

Theatre productions were performed at University of Oregon long before the University Theatre was built in 1949; the Horace Robinson Theatre (as it is now known) is used primarily for Department of Theatre Arts productions. The collection (1909-2009) contains annual reports, publicity materials, production reports, photographs and slides, reviews, correspondence, meeting minutes, and also records from Carnival Theater and Very Little Theatre.