Umbrella-Holder, patent, June 16, 1908; (https://texashistory.unt.edu/ark:/67531/metapth511611/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Umbrella-Holder, patent, June 16, 1908; (https://texashistory.unt.edu/ark:/67531/metapth511611/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .