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Josef Kriehuber (+1876); Foto Peter Geymayer. - Public Domain
US gov - Public Domain
ABC Television<br>Extracted from - Public Domain
Johann Friedrich Schröter (1770-1836) - Public Domain
Charles Reutlinger, b.1816 - Public Domain
Christian D'AUFIN - CC BY-SA 3.0
. - Public Domain
user at project - CC BY 3.0
ABC Television - Public Domain
unknown - Public Domain
Sir :w:George Reid (Scottish artist) - Public Domain
Nathaniel Bartlett Sylvester - Public Domain
Elsa Dorfman - CC BY-SA 3.0
Engraving by James Watson, after unknown artist[http://www.npg.org.uk/collections/search/portrait/mw200120/Sir-John-Trenchard?LinkID=mp56674&role=sit&rNo=0] - Public Domain
Susanne Diesner - CC BY-SA 4.0
Originally uploaded by Wizardman - Public Domain
Engraver: R. Boud - Public Domain
MacLean Center -
Harris & Ewing, photographer - Public Domain
Angela George - CC BY-SA 3.0
Democracy Photoplay Company - Public Domain
Image from Wikimedia Commons
Josef Kriehuber (+1876); Foto Peter Geymayer. - Public Domain
Assmayr, Ignaz, 1790-1862
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Appia, Adolphe, 1862-1928
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Bennet, William S. (William Stiles), 1870-1962
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Lukas, Paul, 1894-1971
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Richmond and Lennox, Charles Lennox, Duke of, 1764-1819
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US gov - Public Domain
Pressler, Larry, 1942-
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ABC Television<br>Extracted from - Public Domain
Wallace, Mike, 1918-2012
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Sandberg, Ryne
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Johann Friedrich Schröter (1770-1836) - Public Domain
Rosenmüller, Johann Christian, 1771-1820
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Charles Reutlinger, b.1816 - Public Domain
Fizeau, H. (Hippolyte), 1819-1896
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Christian D'AUFIN - CC BY-SA 3.0
Gerard, Danyel
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. - Public Domain
Rusk, Thomas J. (Thomas Jefferson), 1803-1857
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user at project - CC BY 3.0
Abdullah Hussain
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ABC Television - Public Domain
Ontkean, Michael
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Kubelka, Peter.
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unknown - Public Domain
Ferrari, Giacomo Gotifredo
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Sir :w:George Reid (Scottish artist) - Public Domain
Smith, William, 1813-1893
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Nathaniel Bartlett Sylvester - Public Domain
Westbrook, Theodoric R., -1885
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Elsa Dorfman - CC BY-SA 3.0
Levertov, Denise, 1923-1997
Image from Wikimedia Commons
Engraving by James Watson, after unknown artist[http://www.npg.org.uk/collections/search/portrait/mw200120/Sir-John-Trenchard?LinkID=mp56674&role=sit&rNo=0] - Public Domain
Trenchard, John, Sir, 1640-1695
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Susanne Diesner - CC BY-SA 4.0
Eggert, Moritz, 1965-
Image from Wikimedia Commons
Originally uploaded by Wizardman - Public Domain
Wood, Reuben, 1792-1864
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Iannelli, Alfonso, 1888-1965
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Engraver: R. Boud - Public Domain
Meteren, Emmanuel van 1535-1612
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MacLean Center -
Lightfoot, Lori E. (Lori Elaine), 1962-
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Harris & Ewing, photographer - Public Domain
Lawson, Alfred W. (Alfred William), 1869-1954
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Angela George - CC BY-SA 3.0
Cassavetes, Nick
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Purser, Sarah, 1848-1943
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Democracy Photoplay Company - Public Domain
Sutton, Charles, -1935
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Hartig, Robert, 1839-1901