Seminole Sentinel (Seminole, Tex.), Vol. 73, No. 69, Ed. 1 Sunday, June 29, 1980, newspaper, June 29, 1980; (https://texashistory.unt.edu/ark:/67531/metapth1127675/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .