Plow., patent, December 28, 1897; (https://texashistory.unt.edu/ark:/67531/metapth508991/m1/2/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Plow., patent, December 28, 1897; (https://texashistory.unt.edu/ark:/67531/metapth508991/m1/2/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .