The Billings News. (Billings, Okla.), Vol. 8, No. 31, Ed. 1 Friday, April 19, 1907, newspaper, April 19, 1907; (https://gateway.okhistory.org/ark:/67531/metadc1173019/m1/1/: accessed January 20, 2020), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .