[Letter from Paul Osterhout to John Patterson and Junia Roberts Osterhout, October 9, 1881], letter, October 9, 1881; (https://texashistory.unt.edu/ark:/67531/metapth243969/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .