The Harper Herald (Harper, Tex.), Vol. 66, No. 15, Ed. 1 Tuesday, April 10, 1990, newspaper, April 10, 1990; (https://texashistory.unt.edu/ark:/67531/metapth1035835/m1/1/: accessed June 29, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .