Plow., patent, October 18, 1887; (https://texashistory.unt.edu/ark:/67531/metapth171648/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Plow., patent, October 18, 1887; (https://texashistory.unt.edu/ark:/67531/metapth171648/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .