Chickasha Daily Express (Chickasha, Okla.), Vol. 22, No. 94, Ed. 1 Wednesday, April 20, 1921, newspaper, April 20, 1921; (https://gateway.okhistory.org/ark:/67531/metadc730608/m1/1/: accessed May 16, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .