Check Book, patent, April 30, 1916; (https://texashistory.unt.edu/ark:/67531/metapth859487/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Check Book, patent, April 30, 1916; (https://texashistory.unt.edu/ark:/67531/metapth859487/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .