[Letter from John Patterson Osterhout to Junia Roberts Osterhout, August 9, 1873], letter, August 9, 1873; (https://texashistory.unt.edu/ark:/67531/metapth255382/m1/1/: accessed May 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .