Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 77, No. 191, Ed. 1 Thursday, April 25, 1991, newspaper, April 25, 1991; (https://gateway.okhistory.org/ark:/67531/metadc1500543/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .