Envelope marked from Judge F. Hinder Dale of Guymon, Oklahoma To J.H. Mayhew # Mrs. Vinita Mathews Cascade Colorado, Box: 5, Folder: 16. Mayhew family papers, RH MS 634. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/81993 Accessed March 17, 2025.