Stirrup., patent, January 6, 1891; (https://texashistory.unt.edu/ark:/67531/metapth172571/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Stirrup., patent, January 6, 1891; (https://texashistory.unt.edu/ark:/67531/metapth172571/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .