Sapulpa Free Press (Sapulpa, Okla.), Vol. 6, No. 15, Ed. 1 Friday, June 18, 1937, newspaper, June 18, 1937; (https://gateway.okhistory.org/ark:/67531/metadc1477686/m1/1/: accessed June 27, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .