Elevated Railway, patent, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth173251/m1/1/: accessed June 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Elevated Railway, patent, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth173251/m1/1/: accessed June 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .