Shanks, Oscar. [Letter from Oscar Shanks to H. J. Bradshaw, February 25,1910], letter, February 25, 1910; (https://texashistory.unt.edu/ark:/67531/metapth1156251/m1/1/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .