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Hubert von Herkomer - Public Domain
Mathew Brady - Public Domain
Flickr user glaurent - CC BY-SA 2.0
NA - Public Domain
National Photo Company Collection - Public Domain
unknown - Public Domain
Edward Lynch, World Telegram staff photographer - Public Domain
GAD - CC BY-SA 3.0
Ca.garcia.s - CC BY-SA 3.0
Chas W. Freeman - CC0 1.0
National Photo Company - Public Domain
:en:John Gilmary Shea - Public Domain
Library of Congress: Hannah G. Solomon Papers - Public Domain
Unidentified photographer - Public Domain
Georges Biard - CC BY-SA 3.0
Luke McKernan - CC BY-SA 2.0
USHMM, courtesy of Hedwig Wachenheimer Epstein - Public Domain
Ryank0984 - CC BY-SA 3.0
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Bent, J. Theodore (James Theodore), 1852-1897
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Hubert von Herkomer - Public Domain
Zimmern, Helen, 1846-1934
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Haworth, Adrian Hardy, 1768-1833
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Szirtes, George, 1948-....
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Spire, André
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Mathew Brady - Public Domain
Elam, Joseph Barton, 1821-1885
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Flickr user glaurent - CC BY-SA 2.0
Lennon, Sean, 1975-
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Beatrice, consort of Lodovico Sforza il Moro, Duke of Milan, 1475-1497
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Nord-Alexis, Pierre, 1820-1910
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Marcello, Alessandro, 1669-1747
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NA - Public Domain
Chaudoir, M. de (Maximilien), baron, 1817-1881
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National Photo Company Collection - Public Domain
Harris, P. C. (Peter Charles), 1865-1951
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unknown - Public Domain
Garbisch, Edgar William
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Garfield, James Rudolph, 1865-1950
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Edward Lynch, World Telegram staff photographer - Public Domain
Bitzer, G.W., 1872-1944
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GAD - CC BY-SA 3.0
Stray, Svenn, 1922-
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Ca.garcia.s - CC BY-SA 3.0
Terasaki, Paul I.
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Chas W. Freeman - CC0 1.0
Freeman, Charles W.
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Poletti, Charles, 1903-2002
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National Photo Company - Public Domain
Drane, Herbert Jackson, 1863-1947
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Noble, Mark, 1754-1827
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Norfolk, Henry Howard, Duke of, 1628-1684
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:en:John Gilmary Shea - Public Domain
Mora, Francis, 1827-1905
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Library of Congress: Hannah G. Solomon Papers - Public Domain
Solomon, Hannah G. (Hannah Greenebaum), 1858-1942
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Tozer, Henry Fanshawe, 1829-1916
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Unidentified photographer - Public Domain
Bridges, Fidelia, 1834-1923
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Georges Biard - CC BY-SA 3.0
Blanc, Michel, 1952-....
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Luke McKernan - CC BY-SA 2.0
Auerbach, Frank, 1931-....
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USHMM, courtesy of Hedwig Wachenheimer Epstein - Public Domain
Brandt, Rudolf, 1909-1948
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Ryank0984 - CC BY-SA 3.0
Dolin, Eric Jay