[Letter from Edward Schreiber and Alvin Kelso to J. P. Cowley, November 4, 1954], letter, November 4, 1954; (https://texashistory.unt.edu/ark:/67531/metapth1486145/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .