erc: who: Davis, Frank C. what: Mineral Kingdom. (Lawton, Okla.), Vol. 2, No. 22, Ed. 1 Thursday, March 30, 1905 when: 19050330 where: https://gateway.okhistory.org/ark:/67531/metadc227115/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://gateway.okhistory.org/ark:/67531/