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unknown - Public Domain
Judson Strong, author. Fred K. L. Chapman, editor. World's Events Company (Chicago, IL), publisher. - Public Domain
Stephen Pearce - Public Domain
Public Domain
AC2BR3L - CC BY-SA 3.0
US Embassy Canada - CC BY 2.0
Bain - Public Domain
nicolas genin - CC BY-SA 2.0
Internet Archive Book Images -
James E. Purdy - Public Domain
Foto Brosio - Public Domain
Gage Skidmore - CC BY-SA 3.0
Pierre Petit - Public Domain
Emery Walker (2 April 1851 – 22 July 1933) - Public Domain
Leopold Bucher (1797-1858), Austrian painter - Public Domain
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unknown - Public Domain
Hardin, Clifford M. (Clifford Morris), 1915-2010
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Judson Strong, author. Fred K. L. Chapman, editor. World's Events Company (Chicago, IL), publisher. - Public Domain
Bingham, Theo. A. (Theodore Alfred), 1858-1934
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Stephen Pearce - Public Domain
Belcher, Edward, Sir, 1799-1877
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Public Domain
Phillips, John, 1800-1874
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Luthuli, A. J. (Albert John), 1898-1967
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AC2BR3L - CC BY-SA 3.0
Soranzo, Giovanni, Venetian Consul in Constantinople
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US Embassy Canada - CC BY 2.0
Crow, Thomas E., 1948-....
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Jorgensen, Joseph, 1844-1888
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Lowe, Hudson, Sir, 1769-1844
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Bain - Public Domain
O'Hare, Kate Richards, 1877-1948
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Bradshaw, John, 1602-1659
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Public Domain
Calhoun, William B. (William Barron), 1795-1865
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Westmacott, Richard, Sir, 1775-1856
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British Museum.
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Voloshyn, Avhustyn, 1874-1946
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nicolas genin - CC BY-SA 2.0
Stanton, Andrew.
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Trendelenburg, Friedrich, 1844-1924
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unknown - Public Domain
Knight, Ridgway, 1839-1924
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Dumas, Romain
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Internet Archive Book Images -
Lutyens, Edwin Landseer, Sir, 1869-1944
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James E. Purdy - Public Domain
French, Daniel Chester, 1850-1931
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Kipnis, Levin, 1894-1990
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Foto Brosio - Public Domain
Sumac, Yma
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Gage Skidmore - CC BY-SA 3.0
Reed, Ralph, 1961-
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Pierre Petit - Public Domain
Duruy, Victor, 1811-1894
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Emery Walker (2 April 1851 – 22 July 1933) - Public Domain
Sichel, Edith Helen, 1862-1914.
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Leopold Bucher (1797-1858), Austrian painter - Public Domain
Bonaparte, François-Charles-Joseph, Herzog von Reichstadt, 1811-1832
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Brouwer, Adriaen, 1605 or 1606-1638
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Wake, William, 1657-1737
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Kuenen, A., 1828-1891