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Michael Geissinger - Public Domain
unknown - Public Domain
G. Liebig, :de:Benutzer:Inductor - Public Domain
Smithsonian Institution -
BerniniPoussin - CC BY-SA 4.0
Hill & Adamson - Public Domain
Orange County Archives - CC BY 2.0
InstituteatGG - CC BY-SA 4.0
anonymous -
Colesworthey Grant (died 1880) - Public Domain
Public Domain
Flickr user Marina Silva - CC BY 2.0
Tdevige - CC BY-SA 3.0
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Mathew Brady Levin Corot Handy - Public Domain
cliff1066™ - CC BY 2.0
Pirie MacDonald - Public Domain
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Snow, Lorenzo, 1814-1901
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Michael Geissinger - Public Domain
Moynihan, Elizabeth B., 1929–2023
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unknown - Public Domain
Boyle, Henry, Baron Carleton, -1725
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G. Liebig, :de:Benutzer:Inductor - Public Domain
Suitner, Otmar
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Smithsonian Institution -
Browne, George Elmer, 1871-1946
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unknown - Public Domain
Perkins, George H. (George Henry), 1844-1933
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BerniniPoussin - CC BY-SA 4.0
Esterly, David.
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Hill & Adamson - Public Domain
Adamson, Robert, 1821-1848
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Orange County Archives - CC BY 2.0
Torrence, Ernest, 1878-1933
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Scott, David Randolph, 1932-
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InstituteatGG - CC BY-SA 4.0
Spence, Christopher, 1970-
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Larroquette, John
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Servetus, Michael, 1511?-1553
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Izard, Ralph, 1785-1824
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Pelham, John Thomas, 1811-1894
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Darwin, Charles Galton, Sir, 1887-1962
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anonymous -
Morand, Paul, 1888-1976
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Colesworthey Grant (died 1880) - Public Domain
Amos, Andrew, 1791-1860
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Leopoldina, Empress, consort of Pedro I, Emperor of Brazil, 1797-1826
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Public Domain
Matsunaga, Spark M. (Spark Masayuki), 1916-1990
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Flickr user Marina Silva - CC BY 2.0
Lovejoy, Thomas E.
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Davis, Jefferson, 1808-1889
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Leakey, L.S.B. (Louis Seymour Bazett), 1903-1972
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Tdevige - CC BY-SA 3.0
Stewart, Alexandra
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Vanderbilt, Cornelius, 1873-1942
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Redmond, William Hoey Kearney, 1861-1917
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Friend of subject, copyright transferred -
Mikus, Eleanore, 1927-
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Mathew Brady Levin Corot Handy - Public Domain
Caswell, Lucien B. (Lucien Bonaparte), 1827-1919
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cliff1066™ - CC BY 2.0
Osborne, Bobby
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Pirie MacDonald - Public Domain
Parker, Horatio W.