Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 58, No. 221, Ed. 1 Monday, May 15, 1972, newspaper, May 15, 1972; (https://gateway.okhistory.org/ark:/67531/metadc1487315/m1/1/: accessed July 13, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .