Tideman, Philip L. Ethnic diversity, perception and response on the northern Great Plains agricultural frontier of the United States, 1890 - 1920, Box: 1, item: 12. Unpublished papers from an Images of the Plains Conference, RH MS 139. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/47017 Accessed May 19, 2024.