A receipt for axels and pieces of oak bought of W. Culbertson, Oswego, Kansas, 188[?], Box: 1, Folder: 3, item: 18. W.S. Coverston letters, RH MS 1356. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/170420 Accessed January 04, 2025.