Sapulpa Herald (Sapulpa, Okla.), Vol. 7, No. 199, Ed. 1 Friday, April 22, 1921, newspaper, April 22, 1921; (https://gateway.okhistory.org/ark:/67531/metadc1520037/m1/2/: accessed July 16, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .