"Cutting Out," an illustration by Rogers for "The Cattle Ranches of Colorado,"
appeared in Harper's New Monlthly Magazine, LIX (Nov., 1879), 889.
Texas State Historical Association. The Southwestern Historical Quarterly, Volume 96, July 1992 - April, 1993. Austin, Texas. The Portal to Texas History. http://texashistory.unt.edu/ark:/67531/metapth101215/. Accessed February 14, 2016.