Nelson, Victor J. [Letter from Victor J. Nelson to Plosser-Prince Air Academy, August 26, 1942], letter, August 26, 1942; (https://texashistory.unt.edu/ark:/67531/metapth1129317/m1/1/: accessed January 19, 2020), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .