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Hermann Clemens Kosel -
Chatham House - CC BY 2.0
Emilius Bærentzen and C. M. Tegner - Public Domain
Richard James Lane - Public Domain
unknown - Public Domain
Félix Régamey - Public Domain
D.mod.61 - CC BY-SA 3.0
Yoichi R. Okamoto - Public Domain
DoulosBen - CC BY-SA 4.0
Elliott & Fry - Public Domain
Andrew Arnold Lambing (1842–1918) - Public Domain
Lysippos - Public Domain
Roger Higgins, World Telegram staff photographer - Public Domain
NBC Television-NBC photo by Gerald Smith. - Public Domain
The University of Rochester - Public Domain
Public Domain
Vargas -
artwork: Christian Siedentopf; file: UserJdsteakley - Public Domain
US Navy - Public Domain
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Green, William Lowthian, 1819-1890
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Hermann Clemens Kosel -
Andrian, Leopold von, 1875-1951
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Anstey, Christopher, 1724-1805
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Chatham House - CC BY 2.0
Murray, Douglas, 1979-....
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Payne, Oliver H. (Oliver Hazard), 1839-1917
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Bursche, Julius, 1862-1942
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Emilius Bærentzen and C. M. Tegner - Public Domain
Nielsen, Anna, 1803-1856
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Richard James Lane - Public Domain
Horsley, William, 1774-1858
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unknown - Public Domain
Cabell, E. C. (Edward Carrington), 1816-1896
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Félix Régamey - Public Domain
Aicard, Jean, 1848-1921
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D.mod.61 - CC BY-SA 3.0
Patolichev, N. S. (Nikolaĭ Semenovich), 1908-1989
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Yoichi R. Okamoto - Public Domain
Bunker, Ellsworth, 1894-1984
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DoulosBen - CC BY-SA 4.0
Kinlaw, Dennis F., 1922-
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Elliott & Fry - Public Domain
Church, R.W. (Richard William), 1815-1890
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Andrew Arnold Lambing (1842–1918) - Public Domain
Lambing, Andrew Arnold, 1842-1918
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Stark, Freya, 1893-1993
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Emerson, Hope, 1897-1960
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Iacovleff, Alexandre, 1887-1938
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Briand, Aristide, 1862-1932
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Lysippos - Public Domain
Boué, Ami, 1794-1881
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Roger Higgins, World Telegram staff photographer - Public Domain
Gates, John, 1913-1992
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unknown - Public Domain
Helbig, Wolfgang, 1839-1915
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NBC Television-NBC photo by Gerald Smith. - Public Domain
Raitt, John, 1917-2005
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The University of Rochester - Public Domain
Wallis, W. Allen (Wilson Allen), 1912-
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Spence, Floyd D., 1928-2001
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Public Domain
Karlin, Alma Maximiliana, 1889-1950
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Jiang, Qing, 1914-1991
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Vargas -
Vargas, Milagro
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artwork: Christian Siedentopf; file: UserJdsteakley - Public Domain
Frederick I, Holy Roman Emperor, approximately 1123-1190
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US Navy - Public Domain
Dealey, Samuel David, 1906-1944