Traction Gang-Plow, patent, April 12, 1910; (https://texashistory.unt.edu/ark:/67531/metapth511647/m1/2/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Traction Gang-Plow, patent, April 12, 1910; (https://texashistory.unt.edu/ark:/67531/metapth511647/m1/2/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .