The Simmons Brand (Abilene, Tex.), Vol. 2, No. 31, Ed. 1, Saturday, May 18, 1918, newspaper, May 18, 1918; (https://texashistory.unt.edu/ark:/67531/metapth96534/m1/1/: accessed May 7, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .