Apparatus for Separating Cotton from its Seed, patent, February 21, 1911; (https://texashistory.unt.edu/ark:/67531/metapth513989/m1/1/: accessed May 31, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Apparatus for Separating Cotton from its Seed, patent, February 21, 1911; (https://texashistory.unt.edu/ark:/67531/metapth513989/m1/1/: accessed May 31, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .