The Allen American (Allen, Tex.), Vol. 8, No. 70, Ed. 1 Thursday, April 20, 1978, newspaper, April 20, 1978; (https://texashistory.unt.edu/ark:/67531/metapth1416992/m1/4/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .