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:w:Nobel Foundation - Public Domain
By H. Pollock, - Public Domain
unknown - Public Domain
Georg Engelhard Schröder - Public Domain
T.W. Smillie - Public Domain
Maull & Polyblank - Public Domain
Kristin Dos Santos - CC BY-SA 2.0
NOAA - Public Domain
Historical and Public Figures Collection - Public Domain
Delaware County Historical Association, Delhi, New York. - Public Domain
Thomas Williams Bicknell - Public Domain
Fotograf Stein - Public Domain
work-for-hire - CC BY 3.0
Vezenberg & Co - Public Domain
A.Kate Fritsch - CC BY-SA 3.0
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:w:Nobel Foundation - Public Domain
Alvarez, Luis W., 1911-1988
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Agucchi, Giovanni Battista, 1570-1632
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Vonnoh, Robert William, 1858-1933
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By H. Pollock, - Public Domain
McHenry, James, 1753-1816
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Kawabe, Masakazu, 1886-1965
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unknown - Public Domain
Cassini, Oleg, 1913-2006
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Samaranch, Juan Antonio
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Weber, Max, 1864-1920
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Georg Engelhard Schröder - Public Domain
Stenbock, Magnus, 1665-1717
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Bouton, Jim
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T.W. Smillie - Public Domain
Pelz, Paul J., 1841-1918
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Got, Edmond, 1822-1901
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Maull & Polyblank - Public Domain
Smith, Archibald, 1813-1872
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Thornbury, Walter, 1828-1876
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Kristin Dos Santos - CC BY-SA 2.0
Laurie, Hugh, 1959-....
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NOAA - Public Domain
Chapman, Sydney, 1888-1970
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Historical and Public Figures Collection - Public Domain
Maurice, Arthur Bartlett, 1873-1946
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Grant, Kerr, Sir, 1878-1967
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Delaware County Historical Association, Delhi, New York. - Public Domain
Sherwood, Samuel, 1779-1862
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Hertzog, James Barry Munnik, 1866-1942
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Amir, Aharon, 1923-2008
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Thomas Williams Bicknell - Public Domain
Bicknell, Thomas Williams, 1834-1925
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unknown - Public Domain
Wistar, Isaac J. (Isaac Jones), 1827-1905
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Fotograf Stein - Public Domain
Katzer, Fried. X. (Friedrich Xaver), 1844-1903
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Boutroux, Émile, 1845-1921
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work-for-hire - CC BY 3.0
Hazlitt, Henry, 1894-1993
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Wilson, G. W. (George Washington), 1823-1893
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Vezenberg & Co - Public Domain
Nekrasov, Nikolaĭ Alekseevich, 1821-1877
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A.Kate Fritsch - CC BY-SA 3.0
Gearhart, Sally Miller, 1931-
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Devonshire, William Cavendish, Duke of, 1808-1891