Chickasha Daily Express. (Chickasha, Indian Terr.), Vol. 8, No. 93, Ed. 1 Saturday, April 20, 1907, newspaper, April 20, 1907; (https://gateway.okhistory.org/ark:/67531/metadc732042/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .