Oklahoma Daily Live Stock News (Oklahoma City, Okla.), Vol. 11, No. 209, Ed. 1 Wednesday, April 20, 1921, newspaper, April 20, 1921; (https://gateway.okhistory.org/ark:/67531/metadc1932678/m1/2/: accessed July 11, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .