The New Era. (Davenport, Okla.), Vol. 3, No. 13, Ed. 1 Thursday, April 20, 1911, newspaper, April 20, 1911; (https://gateway.okhistory.org/ark:/67531/metadc109790/m1/1/: accessed June 15, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .