Improvement in Door-Securers., patent, January 21, 1879; (https://texashistory.unt.edu/ark:/67531/metapth169804/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Improvement in Door-Securers., patent, January 21, 1879; (https://texashistory.unt.edu/ark:/67531/metapth169804/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .