Skeleton map of rail-roads between Cape Canso and St. Louis: compiled under the direction of the committee appointed by the City Council of Boston for celebrating the opening of railway communication between the waters of the Atlantic at Boston, the Canadas and the Great West., map, 1851; (https://texashistory.unt.edu/ark:/67531/metapth190505/m1/1/: accessed June 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .