People and train on North Branch Potomac River bridge
1859-06
1859-06
1797
undated
1930-03-01
1915-12-10
1909-06-14
1878
1976-02-09
1845
1892-01
circa 1915
circa 1910
1975-12-15
1945-02
1950
circa 1826
1896-04
circa 1880
1913-03-31
1906
1804
circa 1925
circa 1970
1913-01-22
1913-01-22
circa 1860
circa 1957-01
circa 1844-1850
1906
circa 1925
circa 1925
1822-02-09
1913-01-21
1798-03-19
1948-11
undated
1959-04
1944-03-01
circa 1850
1776
circa 1925
circa 1948
undated
circa 1925
1913-02-28
circa 1799-1800
1953-09
1949-05
circa 1959
circa 1952-06
circa 1910-1911
circa 1823
1873
undated
circa 1949
circa 1925
circa 1925
undated
circa 1880s
circa 1890