Kempner, Harris Leon. [Letter from Harris Leon Kempner to W. Edgar Crosby, Jr., July 1, 1959], letter, July 1, 1959; (https://texashistory.unt.edu/ark:/67531/metapth1420528/m1/1/: accessed July 3, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .