Zimmerman, Warren. The Guymon Herald. (Guymon, Okla.), Vol. 22, No. 15, Ed. 1 Thursday, June 20, 1912, newspaper, June 20, 1912; (https://gateway.okhistory.org/ark:/67531/metadc274739/m1/1/: accessed December 15, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .