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Craigfnp - CC BY-SA 3.0
ABC - Public Domain
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unknown - Public Domain
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Jacquesverlaeken - CC BY-SA 4.0
US Gov - Public Domain
Carptrash - CC BY 3.0
Richard James Lane - Public Domain
Mouh2jijel - CC BY-SA 3.0
:Category:W. & D. Downey - Public Domain
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De Lucia, Fernando, 1860-1925
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Scott, James Brown, 1866-1943
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Hass, Robert
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Craigfnp - CC BY-SA 3.0
Bowa, Larry, 1945-
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ABC - Public Domain
Gallagher, Helen, 1926-
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Du Châtelet, Gabrielle Emilie Le Tonnelier de Breteuil, marquise, 1706-1749
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Horrocks, Brian, 1895-1985
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Rozov, Joram, 1938-
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Kōtoku, Shūsui, 1871-1911
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Soumet, Alexandre, 1788-1845
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Lawson, Henry, 1867-1922
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original uploader - Public Domain
Spong, William B. (William Belser), 1920-1997
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unknown - Public Domain
White, William Henry, 1845-1913
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Nv8200p - CC BY-SA 3.0
Brunhoff, Laurent de, 1925-....
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Jacquesverlaeken - CC BY-SA 4.0
Sprenger, Aloys, 1813-1893
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US Gov - Public Domain
Sternberg, George Miller, 1838-1915
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Carptrash - CC BY 3.0
Price, George Cadle, 1919-2011
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Richard James Lane - Public Domain
Chalmers, Alexander, 1759-1834
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Marggraf, Andreas Sigismund, 1709-1782
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Elijah ben Solomon, 1720-1797
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Mouh2jijel - CC BY-SA 3.0
Cheb Hasni, 1968-1994
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Sommerfeld, Arnold, 1868-1951
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Montt, Pedro
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Euler, Hans von 1873-1964
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unknown - Public Domain
Sullivan, T. D. (Timothy Daniel), 1827-1914
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Closky, Claude, 1963-....
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:Category:W. & D. Downey - Public Domain
Albert Victor, Prince, Duke of Clarence and Avondale, 1864-1892
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Stanley, Kim
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Carnochan, J. M. (John Murray), 1817-1887
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Midgley, Thomas, 1889-1944