erc:
who: Oklahoma Inspection Bureau
what: Blackburn, 1901
when: 19011000
where: https://gateway.okhistory.org/ark:/67531/metadc964455/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://gateway.okhistory.org/ark:/67531/