Train of wagons crossing the Salt Fork River, Cherokee Outlet-bound for Oklahoma, April 22, 1889, Box: 1, Folder: 1, Page: 3:a. Daniel B. Dyer collection, RH MS P21. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/487438 Accessed May 19, 2024.