Western Oil News (Ringling, Okla.), Vol. 9, No. 3, Ed. 1 Friday, June 29, 1917, newspaper, June 29, 1917; (https://gateway.okhistory.org/ark:/67531/metadc1918694/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .