Group on Walnut Creek condemned bridge (John Olson, Benjamin Norris, Harry Hockman, Edith Starbuck and Mayor girls), undated, Box: 35, Folder: E:179. Bourquin family collection, RH MS G61. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/477657 Accessed June 16, 2024.