Well-Drilling Apparatus, patent, November 27, 1883; (https://texashistory.unt.edu/ark:/67531/metapth170660/m1/4/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Well-Drilling Apparatus, patent, November 27, 1883; (https://texashistory.unt.edu/ark:/67531/metapth170660/m1/4/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .