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United States Senate - Public Domain
unknown - Public Domain
Charles Roscoe Savage - Public Domain
Charles Pierce Merriam, James Sheldon Merriam - Public Domain
Kupferstich von Gustav Zumpe, Sammlung Julius Wallach - Public Domain
Harry Cason - CC BY-SA 3.0
Helenabas - CC BY-SA 4.0
Judson Strong, author. Fred K. L. Chapman, editor. World's Events Company (Chicago, IL), publisher. - Public Domain
Anne E. Keeling - Public Domain
Nadar. Upload and restoration by Jebulon - CC0 1.0
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United States Senate - Public Domain
Welch, Joseph N., 1890-1960
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unknown - Public Domain
Cobham, George Ashworth, Jr., 1925-1864
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Fiennes, Nathaniel, 1607 or 1608-1669
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Charles Roscoe Savage - Public Domain
Flake, William Jordan, 1839-1932
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Ponchielli, Amilcare
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Hansen, Clifford P. (Clifford Peter), 1912-2009
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Campillo y Cosío, José del, 1693-1743
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Moore, W. Harrison (William Harrison), Sir, 1867-1935
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Mackerras, Charles, 1925-2010
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Kierkegaard, Søren, 1813-1855
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Charles Pierce Merriam, James Sheldon Merriam - Public Domain
Merriam, Clinton Levi, 1824-1900
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Lawson, Thomas William, 1857-1925
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Kupferstich von Gustav Zumpe, Sammlung Julius Wallach - Public Domain
Werner, Friedrich Ludwig Zacharias, 1768-1823
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Morehouse, Albert Pickett, 1835-1891
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Füger, Heinrich Friedrich, 1751-1818
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Harry Cason - CC BY-SA 3.0
Lloyd, Norman, 1914-....
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Brodrick, Cuthbert, 1821-1905
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Swann, Thomas, 1809-1883
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Helenabas - CC BY-SA 4.0
Müller-Hermann, Johanna 1878-1941
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Yamagata, Hiro
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Judson Strong, author. Fred K. L. Chapman, editor. World's Events Company (Chicago, IL), publisher. - Public Domain
Bingham, Theo. A. (Theodore Alfred), 1858-1934
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Glaser, Julius, 1831-1885
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Anne E. Keeling - Public Domain
Cobden, Richard, 1804-1865
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Campanella, Tommaso, 1568-1639
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Rist, Johann, 1607-1667
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Bridget, of Sweden, Saint, approximately 1303-1373
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Clarendon, George William Frederick Villiers, Earl of, 1800-1870
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Tilton, Martha
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Wirtinger, Wilhelm, 1865-1945
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Nadar. Upload and restoration by Jebulon - CC0 1.0
Bartholdi, Frédéric-Auguste, 1834-1904