The Allen American (Allen, Tex.), Vol. 2, No. 35, Ed. 1 Tuesday, March 21, 1972, newspaper, March 21, 1972; (https://texashistory.unt.edu/ark:/67531/metapth1407259/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .