erc: who: Giddings, J. D. what: [Fieldnotes from land surveys] when: 1877~ where: https://texashistory.unt.edu/ark:/67531/metapth595316/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/