Patton, Emmett. [Letter from Emmett Patton to Levi Perryman, March 7, 1908], letter, March 7, 1908; (https://texashistory.unt.edu/ark:/67531/metapth186887/m1/1/: accessed April 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .