[Side view into cabin of H-40], photograph, July 22, 1958; (https://texashistory.unt.edu/ark:/67531/metadc950014/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Side view into cabin of H-40], photograph, July 22, 1958; (https://texashistory.unt.edu/ark:/67531/metadc950014/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .