[Texas South-Eastern Railroad Engine 7], photograph, 1907; (https://texashistory.unt.edu/ark:/67531/metapth204401/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Texas South-Eastern Railroad Engine 7], photograph, 1907; (https://texashistory.unt.edu/ark:/67531/metapth204401/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .