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ABC Television - Public Domain
Secretaría de Cultura CDMX - CC BY-SA 2.0
Atick90 - CC BY-SA 4.0
US Government Printing Office - Public Domain
Thesupermat - CC BY-SA 3.0
From a painting by John Collier - Public Domain
Pascal Dagnan-Bouveret - Public Domain
Harold Marcuse - Public Domain
anonymous - Public Domain
Photograph by Architect of the Capitol employee, Marble by Franklin Simmons - Public Domain
Wenzel Hollar - Public Domain
Street & Smith - Public Domain
Civil War glass negative collection, Library of Congress - Public Domain
unknown - CC BY 4.0
Nv8200p - CC BY-SA 3.0
S. Fredericq, estate of artist - CC BY-SA 2.5
Félix Nadar - Public Domain
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ABC Television - Public Domain
Cassidy, Shaun, 1958-
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Secretaría de Cultura CDMX - CC BY-SA 2.0
Zollman, Ronald
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Desmoulins, Camille, 1760-1794
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Luhan, Mabel Dodge, 1879-1962
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Atick90 - CC BY-SA 4.0
Stern, Guy, 1922-....
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US Government Printing Office - Public Domain
Young, C. Clifton, 1922-
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Thesupermat - CC BY-SA 3.0
Bradley, Doug, 1954-
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Stubbs, William, 1825-1901
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From a painting by John Collier - Public Domain
Haines, F. P. (Frederick Paul), 1819-1909
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Pissarro, Felix
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Pascal Dagnan-Bouveret - Public Domain
Courtois, Gustave, 1852-1923
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Harold Marcuse - Public Domain
Lightfoot, Claude M., 1910-1991
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Stillwell, Frank L., 1888-1963
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anonymous - Public Domain
Locke, William John, 1863-1930
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Photograph by Architect of the Capitol employee, Marble by Franklin Simmons - Public Domain
Pierpont, Francis Harrison, 1814-1899
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Wenzel Hollar - Public Domain
Bolingbroke, Oliver St. John, Earl of, 1580?-1646
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Street & Smith - Public Domain
Christy, Ann, 1905-1987
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Gould, Augustus A. (Augustus Addison), 1805-1866
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Whipper, Leigh R. (Leigh Rollin), 1877-1975
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Frederick I, King of Prussia, 1657-1713
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Peterson, Dorothy, 1897-1979
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Civil War glass negative collection, Library of Congress - Public Domain
Wood, Thomas John, 1823-1906
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John, Fritz, 1910-1994
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unknown - CC BY 4.0
Keilin, David, 1887-1963
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Nv8200p - CC BY-SA 3.0
Richards, Eugene
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Hornby, Geoffrey Phipps, Sir, 1825-1895
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S. Fredericq, estate of artist - CC BY-SA 2.5
Martin, Eugene J. (Eugene James), 1938-2005
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Félix Nadar - Public Domain
Lecomte du Noüy, Jean Jules Antoine, 1842-1923
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Forestier, Frédéric
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Morse, Marston, 1892-1977