[Letter from I. H. Kempner to Imperial Bank & Trust Company, June 9, 1951], letter, June 9, 1951; (https://texashistory.unt.edu/ark:/67531/metapth1053865/m1/2/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .