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Lowell State Teachers College - Public Domain
Brianmcmillen - CC BY-SA 4.0
Grahamdubya - CC BY-SA 3.0
unknown - Public Domain
Lajos Tihanyi - Public Domain
Frances Benjamin Johnston - Public Domain
Anders Beer Wilse - Public Domain
Who-When-What Company - Public Domain
Public Domain
Fotograf im Auftrag der :de:United States Information Agency - Public Domain
United States Senate Historical Office - Public Domain
Harris & Ewing - Public Domain
Michelle Hood -
Cook, Jeffrey -
Tokita Family - Public Domain
''New York Tribune'' - Public Domain
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Lowell State Teachers College - Public Domain
Tucker, Forrest, 1919-1986
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Brianmcmillen - CC BY-SA 4.0
Andrews, Ernie
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Francatelli, Charles Elmé, 1805-1876
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Grahamdubya - CC BY-SA 3.0
Foster, Hal.
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Mitchell, Grant, 1874-1957
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Adlum, John, 1759-1836
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unknown - Public Domain
Calder, Alexander Stirling, 1870-1945
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Lajos Tihanyi - Public Domain
Wittfogel, Karl August, 1896-1988
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Frances Benjamin Johnston - Public Domain
Brown, Henry Billings, 1836-1913
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Taylor, Joseph E. (Joseph Edward), 1830-1913
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Ott, Lyn
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Anders Beer Wilse - Public Domain
Krog, Helge, 1889-1962
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Brush, George Jarvis, 1831-1912
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Sasha, 1972-
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Who-When-What Company - Public Domain
Boon, Ratliff, 1781-1844
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Taylor, Laurette, 1884-1946
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Public Domain
Rubin, Robert Edward, 1938-
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Cohen, Geulah, 1925-
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Fotograf im Auftrag der :de:United States Information Agency - Public Domain
Patzak, Julius
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Caroline, Princess of Monaco, 1957-
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United States Senate Historical Office - Public Domain
Morton, Thruston B. (Thruston Ballard), 1907-1982
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Harris & Ewing - Public Domain
Kennan, George F. (George Frost), 1904-2005
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Michelle Hood -
Mann, Sally, 1951-....
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Cook, Jeffrey -
Yellott, John I.
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Mosse, Rudolf, 1843-1920
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Kurzweil, Ray.
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Harrison, Sarah Cecilia
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Tokita Family - Public Domain
Tokita, Kamekichi, 1897-1948
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''New York Tribune'' - Public Domain
Beecher, Janet
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Hildebrand, Adolf von 1847-1921