Abstract The Leland Karr and Ada C. Irvine papers (1932-1998) contain documents related not only to his engineering profession but also to his hobbies and civic activities. Included are biographical documents, correspondence, meeting minutes, news clippings, certificates, a boating log, and other materials. Leland Karr Irvine was an adjunct professor of architecture at the University of Utah. He published several works on acoustical engineering.