Horse-Collar., patent, August 18, 1914; (https://texashistory.unt.edu/ark:/67531/metapth859424/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Horse-Collar., patent, August 18, 1914; (https://texashistory.unt.edu/ark:/67531/metapth859424/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .