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unknown -
unknown - Public Domain
Gerard van Honthorst - Public Domain
shumov - Public Domain
Charles Balthazar Julien Fevret de Saint-Mémin (1770-1852) - Public Domain
The Notman Studio - Public Domain
Public Domain
Wasily - Public Domain
Ross & Thomson - Public Domain
unknown photographer - Public Domain
Simon Fraser University - University Communications - CC BY 2.0
Fildnort - CC BY-SA 3.0
Teigens Fotoatelier/Dextra Photo - CC BY-SA 4.0
E. Neurdein (Acording to :File:Ludvig Joseph Ferd. Herold portrait (9654494282).jpg [https://www.flickr.com/photos/bergen_public_library/9654494282/]) - Public Domain
Bostonian13 - CC BY-SA 3.0
J.C. Strauss Studio - CC0 1.0
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unknown -
Celsius, Magnus, 1621-1679
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Tooke, William, 1744-1820
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unknown - Public Domain
Wolff, Henry Drummond, Sir, 1830-1908
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Gerard van Honthorst - Public Domain
Pauw, Adriaan, 1585-1653
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unknown -
Napier, Henry, 1789-1853
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Brett, George H. (George Howard), 1886-1963
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Mathews, Harry, 1930-....
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Olga, Grand Duchess of Kiev, approximately 890-969
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shumov - Public Domain
T︠S︡vetaeva, Marina, 1892-1941
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Charles Balthazar Julien Fevret de Saint-Mémin (1770-1852) - Public Domain
Van Rensselaer, K. K. (Killian Killian), 1763-1845
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The Notman Studio - Public Domain
Warren, William, 1812-1888
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Public Domain
Roukema, Marge, 1929-2014
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Wasily - Public Domain
Kuijken, Sigiswald
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Ross & Thomson - Public Domain
Ramsay, Edward Bannerman, 1793-1872
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Borochov, Ber, 1881-1917
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unknown photographer - Public Domain
Mayall, Herschel, 1863-1941
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Simon Fraser University - University Communications - CC BY 2.0
Crozier, Lorna, 1948-....
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Fildnort - CC BY-SA 3.0
Franson, Fredrik, 1852-1908
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Dawes, W. R. (William Rutter), 1799-1868
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Teigens Fotoatelier/Dextra Photo - CC BY-SA 4.0
Korsmo, Arne, 1900-1968
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Kuroyanagi, Tetsuko, 1933-....
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E. Neurdein (Acording to :File:Ludvig Joseph Ferd. Herold portrait (9654494282).jpg [https://www.flickr.com/photos/bergen_public_library/9654494282/]) - Public Domain
Herold, Ferdinand
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Fuchs, Ernst, 1930-....
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Public Domain
Surratt, Mary E. (Mary Eugenia), 1820-1865
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Rousseau, Théodore, 1812-1867
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Bostonian13 - CC BY-SA 3.0
Arthur and Elizabeth Schlesinger Library on the History of Women in America
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Wille, Johann Georg, 1715-1808
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J.C. Strauss Studio - CC0 1.0
Block, Karl Morgan, 1886-1958
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Kearney, Denis, 1847-1907
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Wortley, Francis, Sir, 1591-1652