Dudley, L. E. [Letter from L. E. Dudley to T. N. Carswell - April 2, 1941], letter, April 2, 1941; (https://texashistory.unt.edu/ark:/67531/metapth1397739/m1/1/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .