erc:
who: Stevens, Isaac Ingalls, 1818-1862
what: Explorations and surveys for a rail road route from the Mississippi River to the Pacific Ocean, War Department : Routes near the 47th and 49th parallels ; profiles from explorations and surveys made under the direction of the Hon. Jefferson Davis, Secretary of War.
when: 1855
where: https://texashistory.unt.edu/ark:/67531/metapth251794/
erc-support:
who: University of North Texas Libraries
what: Permanent: Stable Content:
when: 20081203
where: https://texashistory.unt.edu/ark:/67531/