Downey, H. W. [Letter from H. W. Downey to P. M. Perkins, February 21, 1894], letter, February 21, 1894; (https://texashistory.unt.edu/ark:/67531/metapth1243562/m1/1/: accessed May 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .