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unknown - Public Domain
John Hamer - CC BY-SA 3.0
Chester Bradley Jordan<br/> - Public Domain
US gov - Public Domain
Fort Worth Star-Telegram Collection - CC BY-SA 4.0
original uploader - Public Domain
Anonymous - Public Domain
Torapatapom - CC BY-SA 4.0
George Kendall Warren - Public Domain
Creator - Public Domain
Hamfoto - CC BY-SA 3.0
Penarc - CC BY-SA 3.0
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unknown - Public Domain
Patten, Edward J. (Edward James), 1905-1994
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John Hamer - CC BY-SA 3.0
Bushman, Richard L.
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Chester Bradley Jordan<br/> - Public Domain
Jordan, Chester B. (Chester Bradley), 1839-1914
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Roche, Joseph T.
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US gov - Public Domain
Montgomery, G. V. (Gillespie V.)
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Bennett, Floyd, 1890-1928
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Griffin, Samuel, 1746-1810
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Freiligrath, Ferdinand, 1810-1876
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Stanford, Thomas C., 1865-1946
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Fort Worth Star-Telegram Collection - CC BY-SA 4.0
Hulme, Etta
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Barry, Henry W., -1875
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Wilson, Francis, 1854-1935
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original uploader - Public Domain
Laning, Harris, 1873-1941
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Massachusetts Institute of Technology
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Curwen, John, 1816-1880
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Sadoul, Jacques, 1881-1956
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Anonymous - Public Domain
Wolfe, Ian, 1896-1992
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Torapatapom - CC BY-SA 4.0
Jaubert, Maurice
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Albemarle, Christopher Monck, Duke of, 1653-1688
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Webster, Henry Kitchell, 1875-1932
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Coligny, Gaspard de, seigneur de Châtillon, 1519-1572
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Bolm, Adolf, 1884-1951
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George Kendall Warren - Public Domain
Perry, Arthur Latham, 1830-1905
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Chassériau, Théodore, 1819-1856
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unknown - Public Domain
Lenz, Jakob Michael Reinhold, 1751-1792
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Creator - Public Domain
Young, Brigham, 1801-1877
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Hamfoto - CC BY-SA 3.0
Holl, Robert
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Penarc - CC BY-SA 3.0
Looser, Gualterio, 1898-1982
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D'Albert, Eugen, 1864-1932
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Huygens, Constantijn, 1596-1687