[Letter from I. H. Kempner to Mr. W. W. Overton, Jr., December 6, 1951], letter, December 6, 1951; (https://texashistory.unt.edu/ark:/67531/metapth1484671/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .