Greer, Hilton R. Amarillo Daily News (Amarillo, Tex.), Vol. 4, No. 204, Ed. 1 Sunday, June 29, 1913, newspaper, June 29, 1913; (https://texashistory.unt.edu/ark:/67531/metapth298052/m1/1/: accessed December 10, 2016), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .