The Marion Dean Ross Chapter of the Society of Architectural Historians (SAH), formally reorganized under the current title in 1995, is an organization of scholars, architects, preservationists, planners, professionals in allied fields, and the interested public. The Chapter jurisdiction encompasses Oregon, Washington, Idaho, and British Columbia. The collection includes Chapter publications, scholarly papers read before the Chapter, video and digital productions, annual meeting proceedings, and announcements and newsletters.
Richard Wilhelm Sundeleaf practiced architecture in Portland, Oregon. The collection contains office files, job files, architectural records and photographic materials documenting the Portland, Oregon architect's work from 1924 to 1984.