[Letter from Daniel W. Kempner to Lee A. L. Herbert, May 24, 1949], letter, May 24, 1949; (https://texashistory.unt.edu/ark:/67531/metapth1341596/m1/2/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .