erc: who: John F. Worley Directory Company what: Worley's Directory of El Paso, Texas, 1909 when: 1909 where: https://texashistory.unt.edu/ark:/67531/metapth285887/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/