Mulhall Enterprise (Mulhall, Okla.), Vol. 18, No. 15, Ed. 1 Friday, April 15, 1910, newspaper, April 15, 1910; (https://gateway.okhistory.org/ark:/67531/metadc305117/m1/4/: accessed May 26, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .