Envelope addressed to Mr. W.S. Coverston in Pittsburg, Kansas, no return address or name, December 30, 1913, Box: 1, Folder: 6, item: 41. W.S. Coverston letters, RH MS 1356. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/171462 Accessed June 17, 2024.