To Charline P. Morgan from John Langdon (3 letters), August 18 1871, July 6 1871, October 31 1871, Box: 8, Folder: 1. Personal Papers of Rose Ruth Morgan and Family, PP 567. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/206647 Accessed May 19, 2024.