[Letter from Robert E. Sherwood to Daniel W. Kempner, October 19, 1953], letter, October 19, 1953; (https://texashistory.unt.edu/ark:/67531/metapth1326177/m1/2/: accessed July 13, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .