Blackshear, A. H., Jr. [Letter from A. H. Blackshear, Jr. to I. H. Kempner, April 27, 1954], letter, April 27, 1954; (https://texashistory.unt.edu/ark:/67531/metapth1502468/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .