Richardson, Rupert N. [Letter from Rupert N. Richardson to T. N. Carswell - April 16, 1944], letter, April 16, 1944; (https://texashistory.unt.edu/ark:/67531/metapth1396638/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .