Improvement in Cultivators., patent, January 15, 1861; (https://texashistory.unt.edu/ark:/67531/metapth165114/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Improvement in Cultivators., patent, January 15, 1861; (https://texashistory.unt.edu/ark:/67531/metapth165114/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .