[Machine Gun in Box Car], photograph, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth63675/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Machine Gun in Box Car], photograph, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth63675/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .