The Hollis Post-Herald (Hollis, Okla.), Vol. 4, No. 41, Ed. 1 Thursday, March 21, 1907, newspaper, March 21, 1907; (https://gateway.okhistory.org/ark:/67531/metadc185326/m1/1/: accessed October 21, 2020), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .