Improvement in Machines for Making Plow-Irons., patent, March 4, 1873; (https://texashistory.unt.edu/ark:/67531/metapth166835/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Improvement in Machines for Making Plow-Irons., patent, March 4, 1873; (https://texashistory.unt.edu/ark:/67531/metapth166835/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .