The Simmons Brand (Abilene, Tex.), Vol. 1, No. 25, Ed. 1, Friday, April 6, 1917, newspaper, April 6, 1917; (https://texashistory.unt.edu/ark:/67531/metapth96494/m1/1/: accessed May 24, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .