Image from Wikimedia Commons
James Creelman - Public Domain
Public Domain
Mathew Brady - Public Domain
unknown - Public Domain
Jean Auguste Dominique Ingres - Public Domain
ALESSANDROMARCOA - CC BY-SA 3.0
Penarc - CC BY-SA 3.0
Yotamie1996 - CC BY-SA 4.0
wd - Public Domain
user at project - Public Domain
gordon - Public Domain
Image from Wikimedia Commons
Templeton, Ty
Image from Wikimedia Commons
James Creelman - Public Domain
Newton, Richard Heber, 1840-1914
Image from Wikimedia Commons
Routh, Edward John, 1831-1907
Image from Wikimedia Commons
Demnig, Gunter, 1947-
Image from Wikimedia Commons
Lippitt, Henry, 1818-1891
Image from Wikimedia Commons
Housman, Arthur, 1890-1942
Image from Wikimedia Commons
Anstruther, Henry Torrens, 1860-1926
Image from Wikimedia Commons
Public Domain
Busemann, Adolf, 1901-
Image from Wikimedia Commons
Estrées, César d', 1628-1714
Image from Wikimedia Commons
Mathew Brady - Public Domain
Willcox, Orlando B.
Image from Wikimedia Commons
unknown - Public Domain
Jones, Robert Emmett, 1912-1997
Image from Wikimedia Commons
Jean Auguste Dominique Ingres - Public Domain
Gatteaux, Edouard 1788-1881
Image from Wikimedia Commons
ALESSANDROMARCOA - CC BY-SA 3.0
James, of Viterbo, Archbishop of Naples, approximately 1255-1307 or 1308
Image from Wikimedia Commons
Penarc - CC BY-SA 3.0
Croizat, Léon (1894-1982).
Image from Wikimedia Commons
Yotamie1996 - CC BY-SA 4.0
Ariel, Meir
Image from Wikimedia Commons
Laozi
Image from Wikimedia Commons
Kemble, Adelaide
Image from Wikimedia Commons
Brosius, Marriott, 1843-1901
Image from Wikimedia Commons
Enchin, 814-891
Image from Wikimedia Commons
Vega, Daniel de la, 1892-1971
Image from Wikimedia Commons
Hamilton, John Brown, 1847-1898
Image from Wikimedia Commons
Bartlett, Charles L. (Charles Lafayette), 1853-1938
Image from Wikimedia Commons
wd - Public Domain
Gruber, Franz Xaver, 1787-1863
Image from Wikimedia Commons
Spencer, Lorillard, 1883-1939
Image from Wikimedia Commons
user at project - Public Domain
Schmandt-Besserat, Denise.
Image from Wikimedia Commons
Coffin, Levi, 1798-1877
Image from Wikimedia Commons
unknown - Public Domain
La Rive, Auguste de, 1801-1873
Image from Wikimedia Commons
Jenks, Albert Ernest, 1869-1953
Image from Wikimedia Commons
gordon - Public Domain
Blaser, Isaac, 1837-1907
Image from Wikimedia Commons
Public Domain
Mueller, Frederick H. (Frederick Henry), 1893-1976