The Rice Thresher (Houston, Tex.), Vol. 55, No. 23.5, Ed. 1 Monday, April 1, 1968, newspaper, April 1, 1968; (https://texashistory.unt.edu/ark:/67531/metapth245027/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .