Image from Wikimedia Commons
Teddyyy - CC BY-SA 3.0
Artist signature unreadable - Public Domain
Konrad Jacobs, Erlangen, Copyright is with MFO - CC BY-SA 2.0
Андрей Романенко - CC BY-SA 3.0
Public Domain
Max Rapp - Public Domain
unknown, this upload by Concord - Public Domain
unknown - Public Domain
Ludger Kuehnhardt - CC BY-SA 4.0
Julian Vannerson (1827-1875) - Public Domain
Compiled and edited by Frederick Simon Hills, published by The Argus Company, Albany, New York. - Public Domain
Nv8200p - CC BY-SA 4.0
Harry T. Edwards - Public Domain
user at project - Public Domain
Bureau of Industrial Service. The bureau was a division of ad agency Young & Rubicam and was widely used by those in the television industry for distribution of publicity materials. - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Polygoon Hollands Nieuws - CC BY-SA 3.0
Perry, William Stevens - Public Domain
w:Harris & Ewing photo studio - Public Domain
John Hoppner -
Image from Wikimedia Commons
Teddyyy - CC BY-SA 3.0
Vincent, Gene, 1935-1971
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Hogan, Timothy S., 1864-
Image from Wikimedia Commons
Artist signature unreadable - Public Domain
Hildreth, Richard, 1807-1865
Image from Wikimedia Commons
Konrad Jacobs, Erlangen, Copyright is with MFO - CC BY-SA 2.0
Lorenzen, Paul, 1915-1994
Image from Wikimedia Commons
Андрей Романенко - CC BY-SA 3.0
Bernstein, Charles, 1950-....
Image from Wikimedia Commons
Public Domain
Karadžić, Vuk Stefanović, 1787-1864
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Avicenna, 980?-1037
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Samaroff, Olga
Image from Wikimedia Commons
Max Rapp - Public Domain
Liberati, Allesandro, 1847-1927
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unknown, this upload by Concord - Public Domain
Einhorn, David, 1809-1879
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unknown - Public Domain
Blon, Franz von 1861-1945
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Ludger Kuehnhardt - CC BY-SA 4.0
Bracher, Karl Dietrich, 1922-....
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Julian Vannerson (1827-1875) - Public Domain
Seward, James Lindsay, 1813-1886
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Compiled and edited by Frederick Simon Hills, published by The Argus Company, Albany, New York. - Public Domain
Tracey, Charles, 1847-1905
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Wyeth, N.C. (Newell Convers), 1882-1945
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Nv8200p - CC BY-SA 4.0
Wilson, Laura, 1939-
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Harry T. Edwards - Public Domain
Edwards, Harry T.
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McLean, Washington, 1816-1890
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Louise, Ruth Harriet, 1903-1940
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user at project - Public Domain
Tolstoy, Nikolai
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Bureau of Industrial Service. The bureau was a division of ad agency Young & Rubicam and was widely used by those in the television industry for distribution of publicity materials. - Public Domain
Oppenheimer, Jess
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Burn Murdoch, W. G. (William Gordon), 1862-1939
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Hindman, Thomas Carmichael, 1828-1868
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unknown - Public Domain
Claiborne, Craig, 1920-2000
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Mathew Brady Levin Corot Handy - Public Domain
McMillan, Samuel James Renwick, 1826-1897
Image from Wikimedia Commons
Polygoon Hollands Nieuws - CC BY-SA 3.0
Haley, William 1901-1987
Image from Wikimedia Commons
Perry, William Stevens - Public Domain
Green, William Mercer, 1798-1887
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unknown - Public Domain
Dodge, Mary Mapes, 1830-1905
Image from Wikimedia Commons
w:Harris & Ewing photo studio - Public Domain
Stedman, Charles Manly, 1841-1930
Image from Wikimedia Commons
John Hoppner -
Ayrton, Edmund, 1734-1808