Herbert Stevens Bailey with others [Roy Hill, Burton Thrall, Mrs. Stanley, Bureau of Chemistry, San Bernardino County School Board], 1910, 1966, Box: 8, Folder: 6. Personal papers of E.H.S. Bailey, PP 158. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/116645 Accessed May 14, 2024.