The Plano Star-Courier (Plano, Tex.), Vol. 29, No. 23, Ed. 1 Friday, July 20, 1917, newspaper, July 20, 1917; (https://texashistory.unt.edu/ark:/67531/metapth601585/m1/1/: accessed May 25, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .