Image from Wikimedia Commons
Daderot - Public Domain
Tylerbenware2 - CC BY-SA 4.0
TonyTheTiger - CC BY-SA 3.0
Iithhs - CC BY 3.0
George Grantham Bain Collection (Library of Congress) - Public Domain
W. Bradley (photographer) -
Congressional Pictorial Directory - Photographer unknown - Public Domain
unknown - Public Domain
Robert D. Ward - Public Domain
gdcgraphics - CC BY-SA 2.0
Olivier Strecker - CC BY-SA 3.0
see here for details: http://digitalgallery.nypl.org/nypldigital/id?1169097 - Public Domain
Nathaniel Hone - Public Domain
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Perry, John, 1943-....
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Daderot - Public Domain
Augur, Hezekiah, 1791-1858
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Varga, Tibor, 1921-2003
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Hernández, Juano 1901-1970
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Doroshenko, Dmytro, 1882-1951
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Reyes, Silvestre, 1944-
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Scarlett, James Yorke, Sir, 1799-1871
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Tylerbenware2 - CC BY-SA 4.0
Guettel, Adam
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Palmer, John, 1742?-1798
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TonyTheTiger - CC BY-SA 3.0
Lattimore, Jonita E.
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Pastrone, Giovanni
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Iithhs - CC BY 3.0
Anderson, John L. (John Leonard), 1945-
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George Grantham Bain Collection (Library of Congress) - Public Domain
Gibson, Charles Dana, 1867-1944
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Nölken, Franz 1884-1918
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Stewart, Roy, 1884-1933
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Cosimo III, Grand-Duke of Tuscany, 1642-1723
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W. Bradley (photographer) -
Ritter, William Emerson, 1856-1944
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Congressional Pictorial Directory - Photographer unknown - Public Domain
Jones, James K. (James Kimbrough), 1839-1908
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unknown - Public Domain
Spiridovich, A. I. (Aleksandr Ivanovich), 1873-1952
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unknown - Public Domain
Wistar, Isaac J. (Isaac Jones), 1827-1905
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Foxe, John, 1516-1587
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Kraus, Alfredo
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Robert D. Ward - Public Domain
Ramos, Fidel V., 1928-....
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gdcgraphics - CC BY-SA 2.0
Crewson, Wendy
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Rush, Olive, 1873-1966
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Olivier Strecker - CC BY-SA 3.0
Deodato, Ruggero, 1939-....
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Brisbane, Arthur, 1864-1936
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see here for details: http://digitalgallery.nypl.org/nypldigital/id?1169097 - Public Domain
Giuliani, Mauro, 1781-1829
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Nathaniel Hone - Public Domain
Fisher, Kitty, 1741?-1767
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Simkins, Francis Butler, 1897-1966