Class key-- Yellow-painted wooden key on which a small piece of paper is affixed for each class listing the senior class' officers, class of 1977, Box: 2, item: 3. Sumner High School records, RH MS 1137. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/202932 Accessed April 24, 2024.