Rudd, David H. [Letter from David H. Rudd to Truett Latimer, April 5, 1961], letter, April 5, 1961; (https://texashistory.unt.edu/ark:/67531/metapth1274566/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .