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unknown - Public Domain
Henry Donovan - Public Domain
Tomdog - CC BY-SA 3.0
Rudolf Krziwanek - Public Domain
NBC Radio - Public Domain
anonymous - Public Domain
MLeinert - CC BY-SA 4.0
Gmauri - Public Domain
Cyprian Kamil Norwid - Public Domain
Apeda Studio, New York - Public Domain
Joseph Schafer - Public Domain
original uploader - CC BY-SA 2.5
The w:Bureau of Engraving and Printing - CC BY-SA 3.0
Ducarme - Public Domain
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unknown - Public Domain
Corrigan, Dominic, Sir, 1802-1880
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Robineau-Desvoidy, J. B. (Jean-Baptiste), 1799-1857
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Avenarius, Ferdinand, 1856-1923
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Pfeiffer, Michelle, 1957-
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Kruger, Otto, 1885-1974
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Henry Donovan - Public Domain
McCormick, Cyrus H. (Cyrus Hall), 1859-1936
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Villeroi, Nicolas de Neufville, Seigneur de, 1542-1617
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Tomdog - CC BY-SA 3.0
Maltin, Leonard.
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Pegge, Samuel, 1704-1796
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Ambrose, W. (William), 1813-1873
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Kelso, Frank B., II (Frank Benton), 1933-2013
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Pott, August Friedrich, 1802-1887
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Rudolf Krziwanek - Public Domain
Anzengruber, Ludwig, 1839-1889
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NBC Radio - Public Domain
Young, Alan, 1919-...
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anonymous - Public Domain
Heath, Thomas Kurton, 1853-1938
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Allen, Thomas N. (Thomas Newton), 1839-
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MLeinert - CC BY-SA 4.0
Leinert, Michael, 1942-....
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Gmauri - Public Domain
Wight, Martin
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Stone, Eben F. (Eben Francis), 1822-1895
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Cyprian Kamil Norwid - Public Domain
Kalergi, Maria, 1822-1874
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White, Thomas, Sir, 1492-1567
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Carducci, Giosuè, 1835-1907
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Apeda Studio, New York - Public Domain
Westley, Helen
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Bergen, Frances
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Reed, James Frazier, 1800-1874
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Hamilton, Linda, 1956-
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Joseph Schafer - Public Domain
Applegate, Jesse A., 1811-1888
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original uploader - CC BY-SA 2.5
Smith, Brendan, 1963-
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The w:Bureau of Engraving and Printing - CC BY-SA 3.0
Barbour, John Strode, 1820-1892
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Ducarme - Public Domain
Isouard, Nicolò (1775?-1818).