The American Issue (Oklahoma City, Okla.), Vol. 11, No. 7, Ed. 1 Thursday, July 1, 1915, newspaper, July 1, 1915; (https://gateway.okhistory.org/ark:/67531/metadc941857/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .