Locke, Morris B. [Letter from Morris B. Locke to Henry Sayles, June 2, 1909], letter, June 2, 1909; (https://texashistory.unt.edu/ark:/67531/metapth1155383/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .