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not stated - Public Domain
Brady-Handy Photograph Collection (Library of Congress) - Public Domain
Public Domain
Ron Kroon / Anefo - CC0 1.0
Raven Underwood - CC BY 2.0
Daniel Elbridge Wager, editor. Boston History Company (Boston, MA), publisher. - Public Domain
Bert Verhoeff / Anefo -
Sol Hurok, concert promoter. - Public Domain
Titian - Public Domain
Carnegie Hall - Public Domain
Henryk Plötz - CC BY-SA 3.0
Mathew Brady Levin Corot Handy - Public Domain
Filberthockey - CC BY-SA 3.0
Konrad Jacobs, Erlangen - CC BY-SA 2.0
U.S. Senate - Public Domain
unknown - Public Domain
Image from Wikimedia Commons
not stated - Public Domain
Guérin, Jules Vallée, 1866-1946
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Garrick, Eva Maria, 1724-1822
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Brady-Handy Photograph Collection (Library of Congress) - Public Domain
Ordway, Nehemiah G. (Nehemiah George), 1828-1907
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Public Domain
Carpenter, F.B. (Francis Bicknell), 1830-1900
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Nash, John, 1752-1835
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Ron Kroon / Anefo - CC0 1.0
Reshevsky, Samuel, 1911-1992
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Raven Underwood - CC BY 2.0
Frewer, Matt, 1958-
Image from Wikimedia Commons
Daniel Elbridge Wager, editor. Boston History Company (Boston, MA), publisher. - Public Domain
Foster, Henry Allen, 1800-1889
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Powell, Don
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Marsham, John, Sir, 1602-1685
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Cochrane, John, 1813-1898
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Hare, Butler B. (Butler Black), 1875-1967
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Bert Verhoeff / Anefo -
Blackham, H. J. (Harold John), 1903-2009
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Loening, Grover, 1888-1976
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Sol Hurok, concert promoter. - Public Domain
Peters, Roberta, 1930-2017
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Titian - Public Domain
Bartoli, Cosimo, 1503-1572
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Leroy d'Étiolles, Jean-Jacques-Joseph (1798-1860).
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Saussure, Henri de 1829-1905
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Carnegie Hall - Public Domain
Copeland, George
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Henryk Plötz - CC BY-SA 3.0
Maizière, Lothar de
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Feuillet, Octave, 1821-1890
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Dobrowen, Issay
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Hundertwasser, Friedensreich, 1928-2000
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Mathew Brady Levin Corot Handy - Public Domain
Harrison, Horace Harrison, 1829-1885
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Filberthockey - CC BY-SA 3.0
Vincent, Rhonda
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Stuart, Campbell, 1885-
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Konrad Jacobs, Erlangen - CC BY-SA 2.0
Cohn-Vossen, S. (Stephan), 1902-1936
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U.S. Senate - Public Domain
Ellsworth, Oliver, 1745-1807
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Veuillot, Louis, 1813-1883
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unknown - Public Domain
Hook, Mary Rockwell, 1877-1978