[Letter from I. H. Kempner, Jr., to D. W. Kempner, October 25, 1951], letter, October 25, 1951; (https://texashistory.unt.edu/ark:/67531/metapth1012625/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .