erc:
who: Mitchell, S. Augustus, Jr. (Samuel Augustus)
what: County map of Kansas, Nebraska, Colorado, Dakota, Wyoming, Montana.
when: 1872
where: https://texashistory.unt.edu/ark:/67531/metapth298485/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://texashistory.unt.edu/ark:/67531/