Governor, patent, May 21, 1907; (https://texashistory.unt.edu/ark:/67531/metapth508694/m1/3/: accessed July 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Governor, patent, May 21, 1907; (https://texashistory.unt.edu/ark:/67531/metapth508694/m1/3/: accessed July 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .