Louviere, William H. [Letter from W. H. Louviere to John N. Curlett, May 20, 1960], letter, May 20, 1960; (https://texashistory.unt.edu/ark:/67531/metapth1182930/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .