McKay, Carol. [Letter from Carol McKay to Lee Elsesser, March 31, 1980], script, March 31, 1980; (https://texashistory.unt.edu/ark:/67531/metadc1041763/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .