The Cushing Daily Citizen (Cushing, Okla.), Vol. 35, No. 167, Ed. 1 Tuesday, May 21, 1957, newspaper, May 21, 1957; (https://gateway.okhistory.org/ark:/67531/metadc2175687/m1/1/: accessed June 11, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .