Bemis, John A. [Letter from Brig. Gen. John A. Bemis to the Commandant of the USMC, 1 April 1929], letter, April 1, 1929; (https://texashistory.unt.edu/ark:/67531/metapth1218752/m1/1/: accessed May 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .