Yodlers at Chautauqua; Wheatley, Schulthess and Father Hildebrand, August 29, 1915, Box: 12, Folder: F:467. Bourquin family collection, RH MS G61. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/474036 Accessed November 23, 2024.