Baltimore and Ohio Railroad forming the central link of the Great National Route between the East & West
1850
1850
1805
circa 1810-1815
circa 1810-1815
1898
circa 1870
1947-04-25
1953-03
circa 1896
1945-02-19
1945-02-19
1942
circa 1890s
circa 1884
1946-10-05
1777-08
1856
1913-01-22
1913-01-22
1913-01-22
1913-01-22
early 20th century
1866-04-02
1866-04-06
1796-03
1815-04-11
1948-05-13
circa 1949-02
circa 1949-02
circa 1949-02
circa 1948-10
circa 1950-11
circa 1950-11
undated
1949-12
1959-03
circa 1929
1949-05
1949-05
1949-05
circa 1825
circa 1887
1892
circa 1850
undated
undated
undated
undated
circa 1860-1870
undated
circa 1850
undated
undated
undated
undated
undated
circa 1870
circa 1900
undated
circa 1850-1860