The Simmons Brand (Abilene, Tex.), Vol. 18, No. 25, Ed. 1, Saturday, April 21, 1934, newspaper, April 21, 1934; (https://texashistory.unt.edu/ark:/67531/metapth98083/m1/1/: accessed October 23, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .