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Michael Fogel - CC BY-SA 3.0
GFHund - CC BY 3.0
PLCjr - CC BY-SA 2.0
self-scanned; photographer unknown - Public Domain
Federal Bureau of Investigation (FBI) -Strangler Bureau - Public Domain
author - Public Domain
Georges Biard - CC BY-SA 3.0
unknown - Public Domain
Tom Marcello - CC BY-SA 2.0
Barcolongo - Public Domain
Alfred Stevens "A.S." Burbank - Public Domain
Jfrancis51 - CC BY-SA 3.0
Lithograph by N. E. Maurin - Public Domain
Bain News Service - Public Domain
Polygoon Hollands Nieuws - CC BY-SA 3.0
Jimaingram - Public Domain
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Michael Fogel - CC BY-SA 3.0
Fogel, Robert William.
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GFHund - CC BY 3.0
Nordheim, Lothar, 1899-
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PLCjr - CC BY-SA 2.0
New York World's Fair (1964-1965 : New York, N.Y.)
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Dean, Christopher, 1958-
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self-scanned; photographer unknown - Public Domain
Grenet, Eliseo, 1893-1950
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Federal Bureau of Investigation (FBI) -Strangler Bureau - Public Domain
De Salvo, Albert Henry, 1931-
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Bastien-Lepage, Jules, 1848-1884
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McCray, Carrie Allen, 1913-
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Strong, Richard P. (Richard Pearson), 1872-1948
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author - Public Domain
McDougall, J. K. (John Keith), 1867-1957
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Georges Biard - CC BY-SA 3.0
Cheryl, Karen 1955-....
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Hull, Cordell, 1871-1955
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Howard, John Eliot, 1807-1883
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unknown - Public Domain
Vildrac, Charles, 1882-1971
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Tom Marcello - CC BY-SA 2.0
McPartland, Marian
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Harris, George E. (George Emrick), 1827-1911
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Gesner, Abraham, 1797-1864
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Davis, N. S. (Nathan Smith), 1817-1904
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unknown - Public Domain
Waddington, Alfred, 1800?-1872
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Daumer, Georg Friedrich, 1800-1875
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Ampère, J.-J. (Jean Jacques), 1800-1864
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Barcolongo - Public Domain
Brull, Mariano, 1891-1956
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Alfred Stevens "A.S." Burbank - Public Domain
Brewster, William, 1566 or 1567-1644
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Jfrancis51 - CC BY-SA 3.0
Francis, W. Nelson (Winthrop Nelson), 1910-2002
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Lithograph by N. E. Maurin - Public Domain
Pelletier, Pierre-Joseph, 1788-1842
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Bain News Service - Public Domain
Pipp, Wally, 1893-1965
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Polygoon Hollands Nieuws - CC BY-SA 3.0
Wiegers, Jan, 1893-1959
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Jimaingram - Public Domain
Ulrici, Hermann, 1806-1884
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Catalán Sañudo, Miguel Antonio 1894-1957
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Oxenstierna, Axel, greve, 1583-1654