Kempner, Harris Leon. [Letter from Harris Leon Kempner to D. W. Kempner, November 9, 1951], letter, November 9, 1951; (https://texashistory.unt.edu/ark:/67531/metapth1012799/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .