Harrington, M. T. [Letter from M. T. Harrington to Truett Latimer, July 4, 1959], letter, July 4, 1959; (https://texashistory.unt.edu/ark:/67531/metapth1269523/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .