From within the United States, December 1917, April-June 1918, Box: 1, Folder: 1-5. Letters to Harriet M. Kemper Morrison, predominantly from Lionel A. Anderson, RH MS 624. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/2135 Accessed April 19, 2024.