Improvement in Plows., patent, May 15, 1860; (https://texashistory.unt.edu/ark:/67531/metapth165102/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Improvement in Plows., patent, May 15, 1860; (https://texashistory.unt.edu/ark:/67531/metapth165102/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .