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Judith Moffett - CC BY-SA 3.0
Jonathan Exley - CC BY-SA 3.0
Richardfabi - Public Domain
The Schwadron Collection of the National Library of Israel - Public Domain
Nyctc7 - Public Domain
Unknows - Public Domain
Erling Mandelmann - CC BY-SA 3.0
Jason Trew/TVSRR - CC BY-SA 3.0
Kristin Dos Santos - CC BY-SA 2.0
Jack1956 - CC BY-SA 3.0
Dick Thomas Johnson - CC BY 2.0
Joseph Siffred Duplessis - Public Domain
SHARE Conference - CC BY-SA 2.0
unknown - Public Domain
Mittelstädt, Rainer - CC BY-SA 3.0
John Bayless Hill& James Peale - Public Domain
original = unknown, scan = Tim Ross - Public Domain
Unknown (pre-1923 photo) Watson, per the link in the source, left Johns Hopkins in 1921 (on bad terms). This is a photo of him there. - Public Domain
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Judith Moffett - CC BY-SA 3.0
Ansen, Alan
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Jonathan Exley - CC BY-SA 3.0
King, Billie Jean, 1943-
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Nicodé, Jean Louis, 1853-1919
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Richardfabi - Public Domain
White, Harrison C.
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The Schwadron Collection of the National Library of Israel - Public Domain
Marks, David Woolf, 1811-1909
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Noyori, Ryoji
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Pease, Joseph W. (Joseph Whitwell), 1828-1903
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Nyctc7 - Public Domain
Bassey, Shirley
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Unknows - Public Domain
Larraín, Inés E. de (Inés Echeverría), 1868-1949
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Baldwin, Hanson Weightman, 1903-1991
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Erling Mandelmann - CC BY-SA 3.0
Jorn, Asger, 1914-1973
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Jason Trew/TVSRR - CC BY-SA 3.0
Shroyer, Sonny, 1935-
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Kristin Dos Santos - CC BY-SA 2.0
Shalhoub, Tony, 1953-...
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Robards, Jason
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Jack1956 - CC BY-SA 3.0
Polkinghorne, J. C., 1930-
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McKellen, Ian
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Dick Thomas Johnson - CC BY 2.0
Jones, Felicity
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Joseph Siffred Duplessis - Public Domain
Thomas, M. (Antoine Léonard), 1732-1785
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SHARE Conference - CC BY-SA 2.0
Ćosić, Vuk 1966-
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unknown - Public Domain
Peple, Edward, 1869-1924
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Fletcher, Frank Jack
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Mittelstädt, Rainer - CC BY-SA 3.0
Reed, Dean
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Wordsworth, Charles, 1806-1892
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John Bayless Hill& James Peale - Public Domain
Posey, Thomas, 1750-1818
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Barrier, Edgar, 1907-1964
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Garibaldi, Giuseppe, 1807-1882
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Herkimer, Nicholas, 1728-1777
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Moore, William, 1810-1878
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original = unknown, scan = Tim Ross - Public Domain
Madho Rao Scindia, Maharaja of Gwalior, 1876-1925
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Unknown (pre-1923 photo) Watson, per the link in the source, left Johns Hopkins in 1921 (on bad terms). This is a photo of him there. - Public Domain
Watson, John B. (John Broadus), 1878-1958