Camp, John. [Letter from John Camp to T. N. Carswell - September 8, 1938], letter, September 8, 1938; (https://texashistory.unt.edu/ark:/67531/metapth1398790/m1/1/: accessed May 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .