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unknown - Public Domain
AJCongress -
C. Geyer - Public Domain
original uploader - Public Domain
forallofus - CC BY-SA 2.0
"Photo by Messrs. Dickinson, London, New Bond Street" (according to http://www.sil.si.edu/DigitalCollections/hst/scientific-identity/fullsize/SIL14-T002-07a.jpg) -
Smithsonian Institution -
Official White House Photo by Samantha Appleton - Public Domain
Eirik Solheim - CC BY-SA 2.0
Abram William Foote - Public Domain
unknown - CC0 1.0
Hoffa2 - CC BY-SA 4.0
George Engleheart - Public Domain
Sean O'Connor, <br />cropped by Sabahrat - Public Domain
original uploader -
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Francesco II Gonzaga, Marquis of Mantua, 1466-1519
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Public Domain
Myers, Elijah E., 1832-1909
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Jode, Pieter de, 1606-approximately 1674
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unknown - Public Domain
Semple, Eugene, 1840-1908
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Walsh, William, 1663-1708
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AJCongress -
Maslow, Will.
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C. Geyer - Public Domain
Schimper, K. Fr. (Karl Friedrich)
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Ross, Charles Brewster, 1870-
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Bennett, Arnold, 1867-1931
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Mascheroni, Edoardo
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original uploader - Public Domain
Gagern, Max
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Dallas, Robert, Sir, 1756-1824
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Peter I, Emperor of Russia, 1672-1725
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forallofus - CC BY-SA 2.0
Coyote, Peter
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Reiske, Johann Jacob, 1716-1774
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"Photo by Messrs. Dickinson, London, New Bond Street" (according to http://www.sil.si.edu/DigitalCollections/hst/scientific-identity/fullsize/SIL14-T002-07a.jpg) -
Kelvin, William Thomson, baron, 1824-1907
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Smithsonian Institution -
Hawthorne, Charles Webster, 1872-1930
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Senghor, Léopold Sédar, 1906-2001
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Payne, John, 1912-1989
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Official White House Photo by Samantha Appleton - Public Domain
Escovedo, Pete
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Eirik Solheim - CC BY-SA 2.0
Lynn, Greg
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Smith, John Walter, 1845-1925
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Abram William Foote - Public Domain
Foote, Abram William, 1862-1941
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Trimmer, Sarah, 1741-1810
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unknown - CC0 1.0
Matačić, Lovro von
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Hoffa2 - CC BY-SA 4.0
Garrison, Jim, 1921-1992
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George Engleheart - Public Domain
Thompson, Thomas Boulden, 1766-1828
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Sean O'Connor, <br />cropped by Sabahrat - Public Domain
Heaney, Seamus, 1939-2013
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Lidholm, Ingvar
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original uploader -
Shepstone, Theophilus, 1817-1893