Image from Wikimedia Commons
unknown - Public Domain
State of South Dakota - Public Domain
Perry, William Stevens - Public Domain
en - Public Domain
(Maurice) Denton Welch - Public Domain
Archive.org - Public Domain
original uploader - Public Domain
Unknown engraver - Public Domain
Giunti Photographic Archive/Foto Rabatti-Domingie, Florence - Public Domain
Hill & Adamson - Public Domain
Harris & Ewing - Public Domain
US gov - Public Domain
Marc Majcher - CC BY-SA 2.0
Montaut - Public Domain
NoJin - CC BY-SA 4.0
Walter Kappacher -
Unknown painter - Public Domain
Marlis Momber - CC BY-SA 3.0
Wisconsin Center for Film and Theater Research - Public Domain
Everts & Ensign (Philadelphia), publishers. - Public Domain
Grentidez - CC0 1.0
Image from Wikimedia Commons
unknown - Public Domain
Arai, Hakuseki, 1657-1725
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Sopwith, Thomas, 1803-1879
Image from Wikimedia Commons
State of South Dakota - Public Domain
Herseth, Ralph E., 1909-1969
Image from Wikimedia Commons
Perry, William Stevens - Public Domain
Rutledge, Francis Huger, 1799?-1866
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en - Public Domain
Wang, Jingwei, 1883-1944
Image from Wikimedia Commons
unknown - Public Domain
Greene, Sonia
Image from Wikimedia Commons
(Maurice) Denton Welch - Public Domain
Welch, Denton
Image from Wikimedia Commons
Archive.org - Public Domain
Matthews, Jessie
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original uploader - Public Domain
Sullivan, James, 1813-1856
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Boott, Francis, 1792-1863
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Henri Christophe, King of Haiti, 1767-1820
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unknown - Public Domain
Sánchez, Luis Alberto, 1900-1994
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Unknown engraver - Public Domain
Vida, Marco Girolamo, approximately 1485-1566
Image from Wikimedia Commons
Giunti Photographic Archive/Foto Rabatti-Domingie, Florence - Public Domain
Palmieri, Matteo, 1405-1475
Image from Wikimedia Commons
Hill & Adamson - Public Domain
Guthrie, Thomas, 1803-1873
Image from Wikimedia Commons
Harris & Ewing - Public Domain
Clark, Austin Hobart, 1880-1954
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US gov - Public Domain
Dickstein, Samuel, 1885-1954
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unknown - Public Domain
Retana, W. E. (Wenceslao Emilio), 1862-1924
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Marc Majcher - CC BY-SA 2.0
Brimley, Wilford, 1935-2020
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Oriani, Barnaba, 1752-1832
Image from Wikimedia Commons
Montaut - Public Domain
Siméon, Joseph-Jérôme, comte, 1749-1842
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NoJin - CC BY-SA 4.0
Bolf, Josef, 1971-
Image from Wikimedia Commons
Walter Kappacher -
Kappacher, Walter, 1938-...
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Vail, Theodore Newton, 1845-1920
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Unknown painter - Public Domain
Cameron, Charles, approximately 1743-1812
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Amado, Jorge, 1912-2001
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Marlis Momber - CC BY-SA 3.0
Harrison, Jan, 1944-....
Image from Wikimedia Commons
Wisconsin Center for Film and Theater Research - Public Domain
Davidson, Max, 1875-1950
Image from Wikimedia Commons
Everts & Ensign (Philadelphia), publishers. - Public Domain
Maxwell, Thomas, 1792-1867
Image from Wikimedia Commons
Grentidez - CC0 1.0
Páez, Pedro, 1564-1622