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unknown - Public Domain
Jindřich Nosek (NoJin - CC BY-SA 3.0
Silvester Harding (1745-1809) - Public Domain
Hugh Stuart Campbell (sketched from life) - Public Domain
Internet Archive Book Images - Public Domain
Public Domain
Marion Golsteijn - CC BY-SA 3.0
Roferbia - CC BY-SA 4.0
unattributed - Public Domain
Arnopeters - CC BY-SA 3.0
Robert Scoble - CC BY 2.0
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Thureau-Dangin, F. (François), 1872-1944
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Northumberland, Algernon Percy, Earl of, 1602-1668
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unknown - Public Domain
Ehrenberg, Herman, 1816-1866
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Jindřich Nosek (NoJin - CC BY-SA 3.0
Kolíbal, Stanislav
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Bedini, Gaetano, 1806-1864
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Lindsay, Margaret, 1910-1981
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Silvester Harding (1745-1809) - Public Domain
Ireland, W. H. (William Henry), 1777-1835
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Hugh Stuart Campbell (sketched from life) - Public Domain
Shaw, Mary, 1854-1929
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Internet Archive Book Images - Public Domain
Lotti, Lorenzo di Ludovico di Guglielmo 1490-1541
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Gnanadesikan, Ram, 1932-
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unknown - Public Domain
Menderes, Adnan
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Richardson, Lewis F., 1881-1953
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Pius VIII, Pope, 1761-1830
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Cunard, Samuel, Sir, 1787-1865
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Cousins, Ralph Wynne, 1915-
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Public Domain
Conkling, Hilda, 1910-
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Pigalle, Jean-Baptiste, 1714-1785
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Queirós, Eça de, 1845-1900
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Marion Golsteijn - CC BY-SA 3.0
Houwer, Rob, 1937-...
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Roferbia - CC BY-SA 4.0
Barquero, Efraín.
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unattributed - Public Domain
Bagby, George William, 1828-1883
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Groven, Eivind, 1901-1977
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Stack, Robert, 1919-2003
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Suárez, Francisco, 1548-1617
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Rasch, Albertina
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Arnopeters - CC BY-SA 3.0
Custine, Astolphe, marquis de, 1790-1857
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Robert Scoble - CC BY 2.0
Leibovitz, Annie, 1949-....
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Smith, James Youngs, 1809-1876
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Mercalli, Giuseppe, 1850-1914
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Laure, Marie, 1902-