Charles E. Hill and Sons. The Granite Enterprise. (Granite, Okla.), Vol. 10, No. 42, Ed. 1 Friday, March 4, 1910, newspaper, March 4, 1910; (https://gateway.okhistory.org/ark:/67531/metadc402752/m1/1/: accessed June 24, 2018), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .