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Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Matt Becker -
Pierre Belhassen - CC BY-SA 4.0
George Fuermann - CC0 1.0
Avronj - CC BY-SA 4.0
Knight Foundation - CC BY-SA 2.0
Catriona Sparks - CC BY 2.0
Rudolf Dührkoop - Public Domain
Friedrich Wilhelm Graupenstein - Public Domain
gdcgraphics - CC BY-SA 2.0
Dudley Hardy - Public Domain
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Public Domain
Olcott, Simeon, 1735-1815
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Hamberg, Axel, 1863-1933
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Mercer, Hugh, approximately 1725-1777
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Leonskaja, Elisabeth
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Mathew Brady Levin Corot Handy - Public Domain
Morton, Oliver P. (Oliver Perry), 1823-1877
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Public Domain
Pellarin, Charles
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Roden, Robert Jocelyn, Earl of, 1788-1870
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Matt Becker -
Lodge, John, 1945-
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Gilbert, Bradford L. (Bradford Lee), 1853-1911
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Harney, Mary
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Pierre Belhassen - CC BY-SA 4.0
Leiter, Saul, 1923-2013
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Carmichael, William, c. 1739-1795
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George Fuermann - CC0 1.0
Dowling, Dick, 1838-1867
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Marino, Giambattista, 1569-1625
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Allen, Horatio, 1802-1889
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Avronj - CC BY-SA 4.0
Peres, Asher, 1934-....
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Knight Foundation - CC BY-SA 2.0
Mernit, Susan
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Young, Charles A. (Charles Augustus), 1834-1908
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Lindsay, David, active 1490-1555
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Catriona Sparks - CC BY 2.0
Gillespie, Bruce
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Rudolf Dührkoop - Public Domain
Harden, Maximilian, 1861-1927
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Lockhart, William, 1811-1896
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Friedrich Wilhelm Graupenstein - Public Domain
Beck, J.T. (Johann Tobias), 1804-1878
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gdcgraphics - CC BY-SA 2.0
Ullmann, Liv
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Necochea, Mariano, 1790-1849
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Sainte-Claire Deville, Henri, 1818-1881
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Gideon, Clarence Earl
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Bonaparte, Elizabeth Patterson, 1785-1879
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Hopper, Edward, 1882-1967
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Dudley Hardy - Public Domain
Haité, George Charles, 1855-1924