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NASA - Public Domain
Anonymous -
John Chester Buttre, after J. Gorbitz - Public Domain
Tucker Collection - Public Domain
GeoPaul7 - CC BY-SA 4.0
unknown - Public Domain
author - Public Domain
The University of Queensland Archives - CC BY 4.0
Napoleon Sarony - Public Domain
George Charles Beresford - Public Domain
Greco22 - Public Domain
George Henry Harlow - Public Domain
Willleingang - CC BY 3.0
John Moodie Heddle & T Mainland - Public Domain
original uploader - Public Domain
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NASA - Public Domain
Dryden, Hugh L. (Hugh Latimer), 1898-1965
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Anonymous -
Paderewski, Ignacy Jan, 1860-1941
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DiMaggio, Joe, 1914-1999
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John Chester Buttre, after J. Gorbitz - Public Domain
Wright, Frances, 1795-1852
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Tucker Collection - Public Domain
Pardoe, Miss (Julia), 1806-1862
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Brown, John Henry, 1820-1895
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Asam, Egid Quirin, 1692-1750
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Marshall, Thomas R. (Thomas Riley), 1854-1925
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Pittenger, William, 1840-1904
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GeoPaul7 - CC BY-SA 4.0
Cross, George Lynn
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unknown - Public Domain
Della Rovere, Domenico, 1442-1501
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author - Public Domain
Averill, J. T. (John Thomas), 1825-1889
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Cook, Warren, 1879-1939
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The University of Queensland Archives - CC BY 4.0
Richards, H. C. (Henry Caselli), 1884-1947
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Miller, Henry, 1891-1980.
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Napoleon Sarony - Public Domain
Davenport, Edward Loomis, 1815-1877
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Dixon, William Hepworth, 1821-1879
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Kamiakin, Yakama chief, approximately 1800-approximately 1877
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George Charles Beresford - Public Domain
Rothenstein, William, 1872-1945
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Scott, James Brown, 1866-1943
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Dwight, Henry Williams, 1788-1845
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unknown - Public Domain
Fortescue-Brickdale, Eleanor
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Greco22 - Public Domain
Rēgas, Velestinlēs, 1757?-1798
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Miller, William, 1782-1849
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unknown - Public Domain
Ardouin, B. (Beaubrun), 1796-1865
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George Henry Harlow - Public Domain
Harlow, George Henry, 1787-1819
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Kostabi, Mark, 1960-....
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Willleingang - CC BY 3.0
Powell, Thomas, 1572?-1635?
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John Moodie Heddle & T Mainland - Public Domain
Laing, Malcolm, 1762-1818
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original uploader - Public Domain
Christiansen, Fredrik Melius