At lake, Kiwanis, Atchison, and Hiawatha Horton picnic, Irwing and big fish, Father Bourquin and Russian olives, August 1931, Box: 15, Folder: F:732. Bourquin family collection, RH MS G61. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/474258 Accessed March 02, 2025.