-
Map no 2 from the northern boundary of California to the Columbia Rivercartographic materialby Williamson, R. S. (Robert Stockton), 1824-1882
Published 1855 -
Explorations and surveys for a rail road route from the Mississippi R to the Pacific Ocean War Departmentroutes near the 47th and 49th parallels profiles from explorations and surveys made under the direction of the Hon Jefferson Davis secretary of warcartographic materialby Stevens, Isaac Ingalls, 1818-1862
Published 1859 -
Map no 1 from San Francisco Bay to the northern boundary of Californiacartographic materialby Williamson, R. S. (Robert Stockton), 1824-1882
Published 1855