Seminole Sentinel (Seminole, Tex.), Vol. 57, No. 29, Ed. 1 Thursday, June 4, 1964, newspaper, June 4, 1964; (https://texashistory.unt.edu/ark:/67531/metapth417400/m1/1/: accessed June 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .