erc: who: Evans, E. M. what: Saturday Morning Advertiser (Durant, Okla.), Vol. 7, No. 46, Ed. 1, Saturday, February 19, 1921 when: 19210219 where: https://gateway.okhistory.org/ark:/67531/metadc83197/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://gateway.okhistory.org/ark:/67531/