Image from Wikimedia Commons
Robert L. Knudsen - Public Domain
Granger - Public Domain
unknown - Public Domain
Public Domain
Brady-Handy Collection (Library of Congress) - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Its my own edited picture - CC BY-SA 4.0
California gov - Public Domain
unknown photographer - Public Domain
L B Walford - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Ambroise Tardieu (1788-1841) - Public Domain
Mnskhan - CC BY-SA 3.0
user at project - CC BY-SA 3.0
(extracted by:) Jochen Burghardt -
Image from Wikimedia Commons
Lortzing, Albert
Image from Wikimedia Commons
Robert L. Knudsen - Public Domain
Rubottom, R. Richard
Image from Wikimedia Commons
Granger - Public Domain
Gilbert, William, 1544-1603
Image from Wikimedia Commons
unknown - Public Domain
Tappan, Henry Philip, 1805-1881
Image from Wikimedia Commons
Public Domain
Kimball, Nathan, 1823?-1898
Image from Wikimedia Commons
Brady-Handy Collection (Library of Congress) - Public Domain
Roosevelt, Edith Kermit Carow, 1861-1948
Image from Wikimedia Commons
Crawford, Thomas, 1813 or 1814-1857
Image from Wikimedia Commons
Public Domain
Reed, Harrison, 1813-1899
Image from Wikimedia Commons
George Grantham Bain Collection (Library of Congress) - Public Domain
Flint, Austin, 1836-1915
Image from Wikimedia Commons
Its my own edited picture - CC BY-SA 4.0
Chamberlin, Edward, 1899-1967
Image from Wikimedia Commons
California gov - Public Domain
Davis, Sharon
Image from Wikimedia Commons
Rosa, Ramón, 1848-1893
Image from Wikimedia Commons
unknown photographer - Public Domain
Morante, Elsa, approximately 1912-1985
Image from Wikimedia Commons
L B Walford - Public Domain
Walford, Lucy Bethia, 1845-1915
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Campbell, R. J. (Reginald John), 1867-1956
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
Casserly, Eugene, 1820-1883
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Käutner, Helmut, 1908-1980
Image from Wikimedia Commons
Mutsu, Munemitsu, 1844-1897
Image from Wikimedia Commons
Wharton, William Fisher, 1847-1919
Image from Wikimedia Commons
Sidney, Sylvia, 1910-1999
Image from Wikimedia Commons
Public Domain
Cummings, Henry Johnson Brodhead, 1831-1909
Image from Wikimedia Commons
Soulary, Joséphin 1815-1891
Image from Wikimedia Commons
Ambroise Tardieu (1788-1841) - Public Domain
Haüy, Réné-Just, 1743-1822
Image from Wikimedia Commons
Mnskhan - CC BY-SA 3.0
Asghar Khan, Mohammad, 1921-....
Image from Wikimedia Commons
unknown - Public Domain
Bandini, Arcadia, 1825-1912
Image from Wikimedia Commons
user at project - CC BY-SA 3.0
Boyd, Joe, 1942-....
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Villon, Jacques, 1875-1963
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Radek, Karl, 1885-1939
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Dicey, Edward, 1832-1911
Image from Wikimedia Commons
(extracted by:) Jochen Burghardt -
Stakman, E.C. (Elvin Charles), 1885-1979