[Telegram from Ruth and Harris Leon Kempner to Mrs. Frank Besson, July 20, 1956], letter, July 20, 1956; (https://texashistory.unt.edu/ark:/67531/metapth1419011/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .