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by William Humphrey (died circa 1810), after an unknown artist - Public Domain
Eric Antoniou - CC BY 2.0
Damon D'Amato - CC BY 2.0
Nicholas Beaudrot - CC BY 2.0
Helene C. Stikkel - Public Domain
artist unknown - Public Domain
The Library of Congress -
TrevorWade - CC BY 3.0
James Frothingham - Public Domain
Smithsonian Institution -
Jean-Baptiste LABRUNE - CC BY-SA 2.0
unknown - Public Domain
Public Domain
Unknown but probably active in mid-to-late 19th century. - Public Domain
Rockwood, N. Y. - Public Domain
Contemporary photograph - Public Domain
Kzitelman -
Image from Wikimedia Commons
by William Humphrey (died circa 1810), after an unknown artist - Public Domain
Woodward, John, 1665-1728
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Eric Antoniou - CC BY 2.0
McGovern, Maureen
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Prior, Matthew, 1664-1721
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Damon D'Amato - CC BY 2.0
Kovic, Ron, 1946-
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Powers, Hiram, 1805-1873
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Nicholas Beaudrot - CC BY 2.0
Fisher, Lee, 1951-
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Helene C. Stikkel - Public Domain
Franks, Tommy, 1945-....
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Moncrief, Sidney, 1957-
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artist unknown - Public Domain
Smith, Frederick Madison, 1874-1946
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The Library of Congress -
Smith, Stuff
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TrevorWade - CC BY 3.0
Landor, Walter, 1913-1995
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James Frothingham - Public Domain
Bentley, William, 1759-1819
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Smithsonian Institution -
Gladstone, J. H. (John Hall), 1827-1902
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Jean-Baptiste LABRUNE - CC BY-SA 2.0
Franceschini, Amy, 1970-
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unknown - Public Domain
Caron, George Robert, 1919-1995
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unknown - Public Domain
Leblanc, Maurice, 1864-1941
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Lebel, Jean-Jacques
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Public Domain
Cem, Prince, son of Mehmed II, Sultan of the Turks, 1459-1495
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unknown - Public Domain
Guerra, Pablo de la, 1819-1874
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Henry, Gustavus A. (Gustavus Adolphus), 1804-1880
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Pflimlin, Pierre
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Ferenczi, Sándor, 1873-1933
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Allison, Samuel King, 1900-1965
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Santos-Dumont, Alberto, 1873-1932
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Unknown but probably active in mid-to-late 19th century. - Public Domain
Ball, James Presley, 1825-1904
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Cherenkov, P. A.
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Rockwood, N. Y. - Public Domain
Bonfanti, Maria, 1847-1921
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Contemporary photograph - Public Domain
Alexander, Samuel, 1859-1938
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Spier, Jo, 1900-1978
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Kzitelman -
Stone, I.F. (Isidor Feinstein), 1907-1989