Bourgeois, Al. [Letter from Al Bourgeois to Harris Leon Kempner, November 16, 1961], letter, November 16, 1961; (https://texashistory.unt.edu/ark:/67531/metapth1436475/m1/1/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .