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Library of Congress? - Public Domain
HarvardEthics - CC BY 2.0
unknown - Public Domain
Jim Heaphy (cropping and editing) -
The University of Queensland - CC BY 4.0
Georg Meisenbach (1841 – 1912) - Public Domain
US Naval History & Heritage Command - Public Domain
Notman - Public Domain
femme de Pierre Vellones - CC BY-SA 3.0
unknown photographer - Public Domain
Karen Keller - CC BY 2.0
original uploader -
Unknown, irrelevant due to age - Public Domain
K. Kendall - CC BY 2.0
Destréguil - Public Domain
Johnbourke - CC BY-SA 3.0
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Leoni, Bruno
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Library of Congress? - Public Domain
Burrows, Julius C. (Julius Caesar), 1837-1915
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HarvardEthics - CC BY 2.0
Wolff, Jonathan, 1959-
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Dantyszek, Jan, 1485-1548
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unknown - Public Domain
Dickens, Charles, 1837-1896
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Jim Heaphy (cropping and editing) -
Dawson, Glen, 1912-
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Leopold II, Holy Roman Emperor, 1747-1792
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unknown - Public Domain
Tytler, James, 1745-1804
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The University of Queensland - CC BY 4.0
Hill, Dorothy, 1907-1997
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Georg Meisenbach (1841 – 1912) - Public Domain
Glasier, J. Bruce (John Bruce), 1859-1920
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Richthofen, Manfred, Freiherr von, 1892-1918
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US Naval History & Heritage Command - Public Domain
Schonland, Herbert E. (Herbert Emery), 1900-1984
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Notman - Public Domain
Warren, Charles, 1868-1954
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Duyckinck, Evert A. (Evert Augustus), 1816-1878
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femme de Pierre Vellones - CC BY-SA 3.0
Martenot, Maurice, 1898-1980
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unknown photographer - Public Domain
Mizner, Addison, 1872-1933
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unknown - Public Domain
Jansen, E.G. (Ernest George), 1881-1959
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Karen Keller - CC BY 2.0
Branch, Billy
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original uploader -
Mack, John (John W.)
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McKellar, Kenneth Douglas, 1869-1957
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Moore, Albert Joseph, 1841-1893
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Unknown, irrelevant due to age - Public Domain
Heinz, H. J. (Henry John), 1844-1919
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Lincoln, Henry Clinton, Earl of, 1684-1728
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K. Kendall - CC BY 2.0
Addy, Obo
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Destréguil - Public Domain
Bert, Paul, 1833-1886
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Silvestre, Armand, 1837-1901
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Drummond, William, 1585-1649
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Johnbourke - CC BY-SA 3.0
Quarrington, Paul
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Boyd, Mark F. (Mark Frederick), 1889-1968
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Enochs, William Henry, 1842-1893