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anonymous -
Not stated -
A. Brauer - Public Domain
John Brandi - CC BY-SA 3.0
U.S. House of Representatives - Public Domain
unknown - Public Domain
Rudolf Dührkoop - Public Domain
original uploader - Public Domain
Onofrio Panvinio 1529-1568 - Public Domain
The Neale Company (Washington, DC), publisher. - Public Domain
Photo by Vesperholly - CC BY-SA 2.5
Western Press Bureau Company (Denver, CO), publisher. - Public Domain
unknown -
Public Domain
University of Bologna - Public Domain
William Patten Junior - Public Domain
Nephew - Public Domain
Image from Wikimedia Commons
Hankar, Paul, 1859-1901
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anonymous -
Orlik, Emil, 1870-1932
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Farr, Sam
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Kilgo, John Carlisle, 1861-1922
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Watson, Thomas E. (Thomas Edward), 1856-1922
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Not stated -
Bresadola, Giacomo, 1847-1929
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Hertzberger, Herman
Image from Wikimedia Commons
A. Brauer - Public Domain
Moreno, Marguerité (1871-1948).
Image from Wikimedia Commons
John Brandi - CC BY-SA 3.0
Brandi, John
Image from Wikimedia Commons
U.S. House of Representatives - Public Domain
Letlow, Julia, 1981-
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unknown - Public Domain
Sothern, Edward Askew, 1826-1881
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Rudolf Dührkoop - Public Domain
Kessler, Harry, Graf. 1868-1937
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original uploader - Public Domain
Le Sueur, Jean-François 1760-1837
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Webber, George Washington, 1825-1900
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Humphreys, Humphrey, 1648-1712
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Twining, Louisa
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Onofrio Panvinio 1529-1568 - Public Domain
Marcellus II, Pope, 1501-1555
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unknown - Public Domain
Quintilian
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The Neale Company (Washington, DC), publisher. - Public Domain
Zenor, William T. (William Tayor), 1846-1916
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Nelson, John, -1734
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Photo by Vesperholly - CC BY-SA 2.5
Kwan, Michelle, 1980-
Image from Wikimedia Commons
Western Press Bureau Company (Denver, CO), publisher. - Public Domain
Symes, G. G. (George Gifford), 1840-1893
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unknown -
Tollens, H. (Hendrik), 1780-1856
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Public Domain
Haigis, John W., 1881-1960
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Mackenzie, Morell, 1837-1892
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University of Bologna - Public Domain
Manfredi, Gabriello, 1681-1761
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Public Domain
O'Brien, Hugh, 1827-1895
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Smith, Clyde Harold, 1876-1940
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William Patten Junior - Public Domain
Banks, Edward, 1769?-1835
Image from Wikimedia Commons
Nephew - Public Domain
Cobb, Humphrey, 1899-1944