Toboggan-Slide., patent, March 19, 1907; (https://texashistory.unt.edu/ark:/67531/metapth514817/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Toboggan-Slide., patent, March 19, 1907; (https://texashistory.unt.edu/ark:/67531/metapth514817/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .