Improvement in Steam-Engines., patent, July 1, 1879; (https://texashistory.unt.edu/ark:/67531/metapth169851/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Improvement in Steam-Engines., patent, July 1, 1879; (https://texashistory.unt.edu/ark:/67531/metapth169851/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .