The Norman Daily Post. (Norman, Okla.), Vol. 1, No. 59, Ed. 1 Friday, May 31, 1918, newspaper, May 31, 1918; (https://gateway.okhistory.org/ark:/67531/metadc113763/m1/1/: accessed June 3, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .