U.S. Air Force Airplane in Flight, photograph, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth40556/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
U.S. Air Force Airplane in Flight, photograph, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth40556/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .