Texas State Historical Association. The Southwestern Historical Quarterly, Volume 77, July 1973 - April, 1974, periodical, 1973/1974; (https://texashistory.unt.edu/ark:/67531/metapth117148/m1/583/: accessed December 10, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .