Observatories that Haven't Survived
California
Mount Lowe Observatory, Altadena, 1893 - 1928
Connecticut
Observatory Hall, Middletown, 1839 – 1927 (replaced with dan dleck in 1914)
Illinois
Behr Observatory, Bloomington, 1894 – 1960s (moved in 1950s)
Knox Observatory, Knox College, Galesburg, 1888 – 1964
Minton Observatory, Blackburn College, Carlinville, 1885 – 1942
Indiana
Holcomb Observatory, Indianapolis, 1888 – 1928 (replaced in 1954)
Knightridge Observatory, Bloomington, 1937 – 2020
Iowa
Science Hall – Drake University, Des Moines, 1894 - 1949
Kansas
Washburn College Observatory, Topeka
Michigan
Michigan State University Observatory, East Lansing, 1880 – 1920s
Minnesota
Darling’s Observatory, Duluth, 1917 – 1972
St. John’s Observatory, Collegevile, 1894 – 1961
University of Minnesota Observatory, Minneapolis, 1896 – 1930s
Missouri
Charles Smith Scott Observatory, Park College, Parkville, 1896 – 1999
Cook Observatory, Macon, 1915(+/-) – 1963 (moved in 1935 and used for various purposes)
New Jersey
Fitz Randolph Observatory, Princeton, 1934 – 2020
Halsted Observatory, Princeton, 1869 - 1932
New York
Proudfit Observatory, Troy, 1878 – 1959
Second Dudley Observatory, Albany, 1892 – 1963
Warner Observatory, Rochester, 1882 - 1931
Ohio
Clarke Observatory, Mount Union College, Alliance, 1923 – 1969
Emerson McMillin Observatory, Ohio State University, Columbus, 1896 – 1976
Hiram Observatory, Hiram, 1901 – 1939 (Burned and replaced)
Wilmington College Observatory, Wilmington, 1892 - 1958
Pennsylvania
Allegheny Observatory, Pittsburg, 1860 – 1950s (replaced by new Allegheny)
Boonevue Observatory, Wyomissing, 1930 - ????
Bucknell Observatory, Lewisburg, 1887 – 1962 (replaced with new observatory)
Daniel Scholl Observatory, Lancaster, 1886 – 1966
Flower Observatory, Philadelphia, 1897 – 1956 (replaced by Flower and Cook Obs)
Gettysburg College Observatory, Gettysburg, 1874 - 1925
Green Observatory, Lafayette College, Easton, 1864 – 1929
South Dakota
USD Observatory, Vermillion, 1917 – 1972
Tennessee
Barnard Observatory, Brentwood, 1875 – 1952 (replaced by Dyer Observatory in 1953)
Vermont
Middlebury College Observatory, Middlebury, 1937 - 1999
Wisconsin
Smith Observatory, Beloit College, Beloit, 1882 – 1969
Underwood Observatory, Lawrence University, Appleton, 1891 - 1964
Mount Lowe Observatory, Altadena, 1893 - 1928
Connecticut
Observatory Hall, Middletown, 1839 – 1927 (replaced with dan dleck in 1914)
Illinois
Behr Observatory, Bloomington, 1894 – 1960s (moved in 1950s)
Knox Observatory, Knox College, Galesburg, 1888 – 1964
Minton Observatory, Blackburn College, Carlinville, 1885 – 1942
Indiana
Holcomb Observatory, Indianapolis, 1888 – 1928 (replaced in 1954)
Knightridge Observatory, Bloomington, 1937 – 2020
Iowa
Science Hall – Drake University, Des Moines, 1894 - 1949
Kansas
Washburn College Observatory, Topeka
Michigan
Michigan State University Observatory, East Lansing, 1880 – 1920s
Minnesota
Darling’s Observatory, Duluth, 1917 – 1972
St. John’s Observatory, Collegevile, 1894 – 1961
University of Minnesota Observatory, Minneapolis, 1896 – 1930s
Missouri
Charles Smith Scott Observatory, Park College, Parkville, 1896 – 1999
Cook Observatory, Macon, 1915(+/-) – 1963 (moved in 1935 and used for various purposes)
New Jersey
Fitz Randolph Observatory, Princeton, 1934 – 2020
Halsted Observatory, Princeton, 1869 - 1932
New York
Proudfit Observatory, Troy, 1878 – 1959
Second Dudley Observatory, Albany, 1892 – 1963
Warner Observatory, Rochester, 1882 - 1931
Ohio
Clarke Observatory, Mount Union College, Alliance, 1923 – 1969
Emerson McMillin Observatory, Ohio State University, Columbus, 1896 – 1976
Hiram Observatory, Hiram, 1901 – 1939 (Burned and replaced)
Wilmington College Observatory, Wilmington, 1892 - 1958
Pennsylvania
Allegheny Observatory, Pittsburg, 1860 – 1950s (replaced by new Allegheny)
Boonevue Observatory, Wyomissing, 1930 - ????
Bucknell Observatory, Lewisburg, 1887 – 1962 (replaced with new observatory)
Daniel Scholl Observatory, Lancaster, 1886 – 1966
Flower Observatory, Philadelphia, 1897 – 1956 (replaced by Flower and Cook Obs)
Gettysburg College Observatory, Gettysburg, 1874 - 1925
Green Observatory, Lafayette College, Easton, 1864 – 1929
South Dakota
USD Observatory, Vermillion, 1917 – 1972
Tennessee
Barnard Observatory, Brentwood, 1875 – 1952 (replaced by Dyer Observatory in 1953)
Vermont
Middlebury College Observatory, Middlebury, 1937 - 1999
Wisconsin
Smith Observatory, Beloit College, Beloit, 1882 – 1969
Underwood Observatory, Lawrence University, Appleton, 1891 - 1964