erc: who: Thacker, John Riley what: The Eldorado Courier (Eldorado, Okla.), Vol. 15, No. 10, Ed. 1 Friday, September 21, 1917 when: 19170921 where: https://gateway.okhistory.org/ark:/67531/metadc402755/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://gateway.okhistory.org/ark:/67531/