Steelman - Lord Apache (1976), The Galvinized Reb (1976), The Prairie Baroness (1979), biographical notes (1979), The Santee Massacre (1980), Royal Charlie (1981), The Hold Out (1983), Box: 21, Folder: 26. Corporate Papers of the Robert Mills Literary Agency, MS 307. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/230673 Accessed May 15, 2024.