Blackshear, A. H., Jr. [Letter from A. H. Blackshear, Jr., to Isaac Herbert Kempner, August 16, 1954], letter, August 16, 1954; (https://texashistory.unt.edu/ark:/67531/metapth1502441/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .