Improvement in Insect-Exterminators., patent, June 10, 1879; (https://texashistory.unt.edu/ark:/67531/metapth169844/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Improvement in Insect-Exterminators., patent, June 10, 1879; (https://texashistory.unt.edu/ark:/67531/metapth169844/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .