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Assenmacher - CC BY-SA 3.0
unknown - Public Domain
NEA photographer Jason Kindig - Public Domain
Chi-Li Wong - CC BY-SA 4.0
Bain News Service - Public Domain
* Eugenio Silvestri - Public Domain
not stated - Public Domain
Collection of JGHowes - Public Domain
Zeroth - CC BY-SA 3.0
Pragdon - CC BY-SA 4.0
Erinc Salor - CC BY-SA 3.0
Unknown (no attribution is given in the source for the image) - Public Domain
Charles Ch. (lithographer) - Public Domain
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Assenmacher - CC BY-SA 3.0
Yun, Isang
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unknown - Public Domain
Verrue, Jeanne Baptiste d'Albert de Luynes, comtesse de, 1670-1736
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Smith, J. (John), 1652-1743
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Price, Harry, 1881-1948
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NEA photographer Jason Kindig - Public Domain
Stucky, Steven.
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De Carlo, Giancarlo, 1919-2005
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Gilpin, John, 1930-
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Dillard, Hardy Cross, 1902-1982
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Schicht, Johann Gottfried, 1753-1823
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Chi-Li Wong - CC BY-SA 4.0
Atchity, Kenneth John.
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Bain News Service - Public Domain
Comstock, William Alfred, 1877-1949
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McKellar, Kenneth Douglas, 1869-1957
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Parker, Cecilia, 1914-1993
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* Eugenio Silvestri - Public Domain
Pindemonte, Ippolito, 1753-1828
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not stated - Public Domain
Thurston, Katherine Cecil, 1875-1911
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Collection of JGHowes - Public Domain
Thayer, John B. (John Borland), 1862-1912
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unknown - Public Domain
Schirra, Wally, 1923-2007
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Zeroth - CC BY-SA 3.0
Campodónico, Juan, 1971-
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Cecil of Chelwood, Robert Gascoyne-Cecil, Viscount, 1864-1958
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Kelly, Michael J., 1857-1894
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Pragdon - CC BY-SA 4.0
Breien, Anja
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Black, J. W. (James Whyte), 1924-2010
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Santerre, Jean-Baptiste, 1651-1717
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Harlan, Kenneth, 1895-1967
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Newton, Walter H., 1880-1941
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Erinc Salor - CC BY-SA 3.0
Bártoli, Cecilia M.
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Unknown (no attribution is given in the source for the image) - Public Domain
Langdale, Chas (Charles), 1787-1868
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Toller, Ernst, 1893-1939
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unknown - Public Domain
Stowe, Emily Howard, 1831-1903
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Charles Ch. (lithographer) - Public Domain
Méric-Lalande, Henriette 1798 or 1799-1867