Map of Oregon, Washington, and part of Idaho., map, 1860; (https://texashistory.unt.edu/ark:/67531/metapth298614/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Map of Oregon, Washington, and part of Idaho., map, 1860; (https://texashistory.unt.edu/ark:/67531/metapth298614/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .