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original uploader - Public Domain
unknown employee of US federal government - Public Domain
Unknown military photographer - Public Domain
Gilbert Stuart - Public Domain
Georges Biard - CC BY-SA 3.0
anonymous -
unknown - Public Domain
The Bob Mizer Foundation - CC BY 3.0
Photographer not named. - Public Domain
Thomas Gainsborough - Public Domain
Roferbia - CC BY-SA 4.0
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original uploader - Public Domain
Goetz, Hermann, 1840-1876
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unknown employee of US federal government - Public Domain
Angleton, James, 1917-1987
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Weir, Robert Stanley, 1856-1926
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Unknown military photographer - Public Domain
Ginder, Philip D. (Philip DeWitt), 1905-1968
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Gilbert Stuart - Public Domain
Hamilton, Hugh, 1729-1805
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Georges Biard - CC BY-SA 3.0
Katché, Manu.
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Coronado, Carolina, 1820-1911
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Meighen, Arthur, 1874-1960
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Panufnik, Andrzej
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James, Henry, 1843-1916
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Poggendorff, J. C. (Johann Christian), 1796-1877
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anonymous -
Plotinus
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Benda, C. (Carl), 1857-1932
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unknown - Public Domain
Bateman, Kate Josephine, 1843-1917
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Georges Biard - CC BY-SA 3.0
Cluzet, François
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Iorga, Nicolae, 1871-1940
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Widal, Fernand (Fernand Georges Isidore), 1862-1929
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Jackson, Henry, 1855-1929
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The Bob Mizer Foundation - CC BY 3.0
Mizer, Bob
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Elkana, Yehuda, 1934-2012
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Photographer not named. - Public Domain
Holter, Iver, 1850-1941
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Hyde, Douglas, 1860-1949
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Harnack, Arvid, 1901-1942
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Wolseley, Garnet Wolseley, Viscount, 1833-1913
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unknown - Public Domain
Johns, John, 1796-1876
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Torres, Fina
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Adam, Robert, 1728-1792
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Thomas Gainsborough - Public Domain
Dudley, H. Bate (Henry Bate), Sir, 1745-1824
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Livingstone, David, 1813-1873
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Roferbia - CC BY-SA 4.0
Wolff, Egon, 1926-....