Concepcion Fill / P.R.R. [Pacific Railroad?]: 2 men, a lady and a dog with the front of a steaming locomotive, Box: 1, Folder: 16. John S. and Dan Dillon Casement papers and photographs, RH MS 755. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/28073 Accessed July 20, 2025.