Baltimore and Ohio Railroad forming the central link of the Great National Route between the East & West
1850
1850
circa 1880s
circa 1880
1913-01-22
1913-03-12
1913-03-12
1913-03-12
1913-03-12
1913-03-31
2013
circa 1860
1949-05
1959-10
1959-10
1949-07
unknown
1861
circa 1861
circa 1858
1874
1904
1864-03-25
1911
undated
undated
1782
circa 1865
circa 1949
1876-1877
1934
circa 1925
1913-03-31
1913-01-22
1913-01-22
1913-01-13
circa 1825
1959-10
circa 1951-02
1959-10
1896
1829
circa 1933-1934
1917-05-14
undated
1940-03
circa 1845
1889
circa 1860-1912
1913-03-31
1913-03-31
circa 1929
1913-09-14
1877
circa 1962
circa 1959
circa 1957-01
circa 1940-1943
1817
circa 1993
circa 1993