erc: who: Watkins and Sons what: The Helena Star. (Helena, Okla.), Vol. 14, No. 31, Ed. 1 Thursday, August 7, 1919 when: 19190807 where: https://gateway.okhistory.org/ark:/67531/metadc1726678/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://gateway.okhistory.org/ark:/67531/