Boll-Weevil Exterminator., patent, February 5, 1918; (https://texashistory.unt.edu/ark:/67531/metapth1256392/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Boll-Weevil Exterminator., patent, February 5, 1918; (https://texashistory.unt.edu/ark:/67531/metapth1256392/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .