Safety Attachment for Locomotive-Cabs., patent, March 2, 1915; (https://texashistory.unt.edu/ark:/67531/metapth859422/m1/6/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Safety Attachment for Locomotive-Cabs., patent, March 2, 1915; (https://texashistory.unt.edu/ark:/67531/metapth859422/m1/6/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .