Oklahoma State Register (Guthrie, Okla.), Vol. 30, No. 10, Ed. 1 Thursday, July 7, 1921, newspaper, July 7, 1921; (https://gateway.okhistory.org/ark:/67531/metadc88633/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .