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Willard, O.H. - Public Domain
Philippe de Champaigne Philippe Lallemand - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
unknown - Public Domain
Tarjei Hanken at https://www.flickr.com/people/41919262@N05 - CC BY 2.0
Alaminalpha - CC BY-SA 3.0
original uploader - Public Domain
Not stated - Public Domain
:Category:John Cochran - Public Domain
Samuel Hart - Public Domain
Esther Bubley - CC BY-SA 3.0
Unknown, published by S.J. Clarke Publishing Company - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Fyodor Bronnikov - Public Domain
Julio Enriquez - CC BY 2.0
U.S. House of Representatives - Public Domain
Contributor(s): Lomer - Public Domain
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Inzov, Ivan Nikitich, 1768-1845
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Willard, O.H. - Public Domain
Allen, George, 1808-1876
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Philippe de Champaigne Philippe Lallemand - Public Domain
Lamoignon, Guillaume de 1617-1677
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Mathew Brady Levin Corot Handy - Public Domain
Saunders, Alvin, 1817-1899
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Carew, Thomas, 1594?-1640
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unknown - Public Domain
Strutt, Arthur John, 1819-1888
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Tarjei Hanken at https://www.flickr.com/people/41919262@N05 - CC BY 2.0
Glover, Julian, 1935-
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Talbot, Charles Chetwynd, active 1816-1835, Earl of Talbot, Lord Lieutenant of Ireland
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Alaminalpha - CC BY-SA 3.0
Bell, Gawain, Sir
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Scaria, Emil 1838-1886
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Mathew Brady Levin Corot Handy - Public Domain
Hamilton, Morgan Calvin, 1809-1893
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original uploader - Public Domain
Livermore, Henrietta W. (Henrietta Wells), 1864-
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Not stated - Public Domain
Winship, Albert E. (Albert Edward), 1845-1933
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unknown - Public Domain
Graham, William Alexander, 1839-1923
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Cowper, William Cowper, Earl, approximately 1665-1723
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:Category:John Cochran - Public Domain
Abernethy, John, 1764-1831
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Varley, John, 1778-1842
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Samuel Hart - Public Domain
Robinson, Henry Douglas, 1860-1913
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Esther Bubley - CC BY-SA 3.0
Oneal, Hank
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Unknown, published by S.J. Clarke Publishing Company - Public Domain
Brodie, Alexander O. (Alexander Oswald), 1849-1918
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George Grantham Bain Collection (Library of Congress) - Public Domain
Markham, Clements R. (Clements Robert), Sir, 1830-1916
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Fyodor Bronnikov - Public Domain
Zucchi, Virginia, 1849-1930
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Syme, James, 1799-1870
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unknown - Public Domain
Chiabrera, Gabriello, 1552-1638
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Julio Enriquez - CC BY 2.0
Douglas, Kirk, 1972-
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Wood, Matthew, Sir, 1768-1843
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U.S. House of Representatives - Public Domain
Cherfilus-McCormick, Sheila, 1979-
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Contributor(s): Lomer - Public Domain
Hodgkinson, W. O. (William Oswald), 1835-1900
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Miller, Kelly, 1863-1939
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Richthofen, Manfred, Freiherr von, 1892-1918