Texas State Historical Association. The Southwestern Historical Quarterly, Volume 84, July 1980 - April, 1981, periodical, 1980/1981; (https://texashistory.unt.edu/ark:/67531/metapth101225/m1/16/: accessed August 18, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .