The Lawton Constitution (Lawton, Okla.), Vol. 13, No. 251, Ed. 1 Tuesday, June 1, 1915, newspaper, June 1, 1915; (https://gateway.okhistory.org/ark:/67531/metadc128784/m1/1/: accessed June 29, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .