Hanging Millstones., patent, May 29, 1860; (https://texashistory.unt.edu/ark:/67531/metapth165103/m1/1/: accessed May 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Hanging Millstones., patent, May 29, 1860; (https://texashistory.unt.edu/ark:/67531/metapth165103/m1/1/: accessed May 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .