Latimer, Truett. [Letter from Truett Latimer to Orval Filbeck, May 6, 1961], letter, May 6, 1961; (https://texashistory.unt.edu/ark:/67531/metapth1273760/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .