Image from Wikimedia Commons
Lambert after Pierre-Narcisse Guérin - Public Domain
Harris & Ewing - Public Domain
Archivo General de la Nación - Public Domain
unknown photographer - CC BY-SA 3.0
Monica Boirar - CC BY-SA 3.0
Joost Evers / Anefo - CC BY-SA 3.0
unknown - Public Domain
Perry, William Stevens - Public Domain
U.S. Government Printing Office. - Public Domain
Robert Stewart - CC BY-SA 2.0
World Economic Forum - CC BY-SA 2.0
Gegeours - CC BY-SA 4.0
Ohjay - CC BY 3.0
National Photo Company Collection (Library of Congress) - Public Domain
White House photographer Eric Draper - Public Domain
Herbert Rose Barraud - Public Domain
Greg Gordon - Public Domain
https://illinois.edu/emailer/files/82502/wm-everitt-oct2015.jpg - CC BY-SA 4.0
Image from Wikimedia Commons
Lambert after Pierre-Narcisse Guérin - Public Domain
Rey, Jean-Baptiste, 1734-1810
Image from Wikimedia Commons
Linden, Eric, 1909-1994
Image from Wikimedia Commons
Harris & Ewing - Public Domain
Andrews, Fannie Fern, 1867-1950
Image from Wikimedia Commons
Pangborn, Franklyn, 1889-1958
Image from Wikimedia Commons
Archivo General de la Nación - Public Domain
Martínez, Isabel
Image from Wikimedia Commons
unknown photographer - CC BY-SA 3.0
Duyvendak, J.J.L. (Jan Julius Lodewijk), 1889-1954
Image from Wikimedia Commons
Monica Boirar - CC BY-SA 3.0
Keller, Max E., 1947-
Image from Wikimedia Commons
Joost Evers / Anefo - CC BY-SA 3.0
Kedrova, Lila
Image from Wikimedia Commons
unknown - Public Domain
Ringling, John, 1866-1936
Image from Wikimedia Commons
Muldoon, Patrick, 1968-
Image from Wikimedia Commons
Perry, William Stevens - Public Domain
Thompson, Hugh Miller, 1830-1902
Image from Wikimedia Commons
U.S. Government Printing Office. - Public Domain
Buckley, Charles A. (Charles Anthony), 1890-1967
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Robert Stewart - CC BY-SA 2.0
Dith Pran, 1942-2008
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World Economic Forum - CC BY-SA 2.0
Huntington, Samuel P.
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Lampman, Archibald, 1861-1899
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Borja y Velasco, Gaspar de, 1580-1645
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unknown - Public Domain
Eberwein, Carl, 1786-1868
Image from Wikimedia Commons
Gegeours - CC BY-SA 4.0
Solleville, Francesca
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unknown - Public Domain
Macdonald, Wallace
Image from Wikimedia Commons
Ohjay - CC BY 3.0
Saint-Martin, Louis-Claude de, 1743-1803
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National Photo Company Collection (Library of Congress) - Public Domain
Williams, John Sharp, 1854-1932
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Tietze, Heinrich, 1880-1964
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Lonsdale, James, 1777-1839
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White House photographer Eric Draper - Public Domain
Depriest, James
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unknown - Public Domain
Flandrau, Charles E. (Charles Eugene), 1828-1903
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Smith, William, -1814
Image from Wikimedia Commons
Herbert Rose Barraud - Public Domain
Rutland, Violet, Duchess of, 1856-1937
Image from Wikimedia Commons
Greg Gordon - Public Domain
Goforth, Jonathan, 1859-1936
Image from Wikimedia Commons
unknown - Public Domain
Wolfsthal, Joseph, 1899-1931
Image from Wikimedia Commons
https://illinois.edu/emailer/files/82502/wm-everitt-oct2015.jpg - CC BY-SA 4.0
Everitt, W. L. (William Littell), 1900-