Warnken, Mark. The Allen American (Allen, Tex.), Vol. 21, No. 20, Ed. 1 Sunday, March 11, 1990, newspaper, March 11, 1990; (https://texashistory.unt.edu/ark:/67531/metapth1571485/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .