Osterhout, John Patterson. [Letter from John Patterson Osterhout to Sarah Osterhout, February 4, 1855], letter, February 4, 1855; (https://texashistory.unt.edu/ark:/67531/metapth255307/m1/1/: accessed May 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .