erc: who: Evans, E. M. what: Saturday Morning Advertiser (Durant, Okla.), Vol. 7, No. 24, Ed. 1, Saturday, May 1, 1920 when: 19200501 where: https://gateway.okhistory.org/ark:/67531/metadc83156/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://gateway.okhistory.org/ark:/67531/