Trammell, H. [Letter from H. Trammell to Henry Sayles, July 7, 1909], letter, July 7, 1909; (https://texashistory.unt.edu/ark:/67531/metapth1156810/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .