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Public Domain
X Media Lab - CC BY 2.0
Mathew Brady Levin Corot Handy - Public Domain
unknown - Public Domain
Alan Light - CC BY 2.0
Postdlf -
author - Public Domain
ABC Television - Public Domain
United States Department of Energy - Public Domain
Studio photographer Carl Borntraeger. - Public Domain
Stephencdickson - CC BY-SA 4.0
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Alishan, Ghewond M., 1820-1901
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Public Domain
Trippe, J. T. (Juan Terry), 1899-
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Tinctoris, Johannes, -1511
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X Media Lab - CC BY 2.0
Stevenson, John, 1959-
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Rafinesque, C.S. (Constantine Samuel), 1783-1840
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Fitzgerald, Susan W. (Susan Walker), 1871-
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Mathew Brady Levin Corot Handy - Public Domain
Hamilton, Morgan Calvin, 1809-1893
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unknown - Public Domain
Pugin, Edward Welby, 1834-1875
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Public Domain
Watkins, Arthur V. (Arthur Vivian), 1886-1973
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unknown - Public Domain
Gilbert, Rosa M. (Rosa Mulholland), 1841-1921
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Alan Light - CC BY 2.0
Cronyn, Hume
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Baker, Bernard Nadal, 1854-1918
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Postdlf -
Van Rensselaer, Schuyler, Mrs., 1851-1934
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author - Public Domain
O'Neal, Edward Asbury, 1818-1890
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unknown - Public Domain
Dureau de la Malle, Jean-Baptiste-Joseph-René (1742-1807).
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ABC Television - Public Domain
Smith, Jack, 1913-2006
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United States Department of Energy - Public Domain
Koonin, Steven E.
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Trevino, Lee
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Turner, J. B. (Jonathan Baldwin), 1805-1899
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Maurois, André, 1885-1967
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Palucca, Gret, 1902-1993
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Agramonte y Loynaz, Ignacio, 1841-1873
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Studio photographer Carl Borntraeger. - Public Domain
Steinway, William, 1836-1896
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Cancrin, Franz Ludwig von 1738-1812
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Käutner, Helmut, 1908-1980
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Fabbroni, Giovanni Valentino Mattia, 1752-1822
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Public Domain
Burt, Erasmus R., approximately 1820-1861
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Stephencdickson - CC BY-SA 4.0
Innes, A. Taylor (Alexander Taylor), 1833-1912
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Desfontaines, René Louiche, 1750-1833
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Aldrich, Louis, 1843-1901