Blackshear, A. H., Jr. [Letter from A. H. Blackshear, Jr. to Thomas L. James, January 16,1957], letter, January 16, 1957; (https://texashistory.unt.edu/ark:/67531/metapth1401032/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .