The Plano Star-Courier (Plano, Tex.), Vol. 39, No. 17, Ed. 1 Friday, June 7, 1918, newspaper, June 7, 1918; (https://texashistory.unt.edu/ark:/67531/metapth570473/m1/1/: accessed May 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .