Charles E. Hill and Sons. The Granite Enterprise. (Granite, Okla.), Vol. 11, No. 21, Ed. 1 Friday, October 7, 1910, newspaper, October 7, 1910; (https://gateway.okhistory.org/ark:/67531/metadc280973/m1/1/: accessed April 20, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .