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Mathew Brady - Public Domain
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Thomas Goff Lupton (1791-1873), Engraver. Sir John Watson-Gordon (1788-1864), painter - Public Domain
unknown - Public Domain
MiliHell - CC BY-SA 3.0
Vogler - CC BY-SA 4.0
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Ji-Elle - CC BY-SA 3.0
Mezzotint by S. W. Reynolds, 1838, after Joshua Reynolds (1723 – 1792) - Public Domain
State of Minnesota - Public Domain
Japonica - CC BY-SA 4.0
Studio d'Ora, Paris - Public Domain
A. Tardier, an 18th century artist, picture digitalised by Alexei Kouprianov - Public Domain
National Academy of Sciences - Public Domain
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Mathew Brady - Public Domain
Morrill, Justin S. (Justin Smith), 1810-1898
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original uploader - Public Domain
Duer, Caroline, 1865-1956
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Thomas Goff Lupton (1791-1873), Engraver. Sir John Watson-Gordon (1788-1864), painter - Public Domain
Bethell, Christopher, 1773-1859
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unknown - Public Domain
Rosewall, Ken
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MiliHell - CC BY-SA 3.0
Rawls, Lou
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Vogler - CC BY-SA 4.0
Ralph, Bo
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Fischer, Debra
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Mills, Ralph J.
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Mathew Brady - Public Domain
Fry, James B. (James Barnet), 1827-1894
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Ronald, Landon
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Blackburn, George L., 1936-....
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Ji-Elle - CC BY-SA 3.0
Duquesnoy, Adrien-Cyprien, 1759-1808
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Mezzotint by S. W. Reynolds, 1838, after Joshua Reynolds (1723 – 1792) - Public Domain
Mudge, John, 1721-1793
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Bentinck, Willem, Heer van Rhoon en Pendrecht, 1704-1774
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State of Minnesota - Public Domain
Rines, Henry, 1872-1950
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Trimen, Henry, 1843-1896
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unknown - Public Domain
Grace, Thomas Samuel, 1815-1879
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Firpo, Roberto, 1884-1969
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Harrison, Richard Almgill, 1824-1904
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Martineau, John E. (John Ellis), 1873-1937
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Japonica - CC BY-SA 4.0
Romagnesi, Henri, 1912-1999
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Carew, Thomas, 1594?-1640
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Studio d'Ora, Paris - Public Domain
Argentina, 1888-1936
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Moore, Sydenham, 1817-1862
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Tonge, Philip, 1897-1959
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Rossetti, Maria Francesca, 1827-1876
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A. Tardier, an 18th century artist, picture digitalised by Alexei Kouprianov - Public Domain
Pallas, Peter Simon, 1741-1811
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Bardem, Javier, 1969-....
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Costello, John M. (John Martin), 1903-1976
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National Academy of Sciences - Public Domain
Giles, Norman H., 1915-2006