Downer, Gerard T. [Letter from Gerard T. Downer to D. W. Kempner, August 25, 1953], letter, August 25, 1953; (https://texashistory.unt.edu/ark:/67531/metapth1383289/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .