[A hand painted portrait of William Ryon.], artwork, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth1423/m1/1/: accessed April 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[A hand painted portrait of William Ryon.], artwork, Date Unknown; (https://texashistory.unt.edu/ark:/67531/metapth1423/m1/1/: accessed April 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .