Sayles, John. [Letter from John Sayles to J. E. Pearson, May 28, 1934], letter, May 28, 1934; (https://texashistory.unt.edu/ark:/67531/metapth1154606/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .