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George Iles - Public Domain
Cadmiumyellow - CC BY-SA 4.0
unknown - CC BY-SA 4.0
Stephencdickson - CC BY-SA 4.0
unknown - Public Domain
Public Domain
unknown photographer - Public Domain
George Romney - Public Domain
Helmut Montag - CC BY 3.0
Photographer is unknown, copyright holder Christine MacLeod - Public Domain
Igor Palmin - CC BY-SA 2.0
nn - Public Domain
David Harpe - CC BY-SA 3.0
Bain News Service, publisher - Public Domain
Bain News Service - Public Domain
Paul Thompson - Public Domain
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Bly, Nellie, 1864-1922
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Méchain, Pierre, 1744-1804
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Halsey, William Frederick, 1882-1959
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George Iles - Public Domain
Blanchard, Thomas, 1788-1864
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Lewis, Theodore Belden, 1843-1899
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Cadmiumyellow - CC BY-SA 4.0
Bowes, David, 1957-
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Anwar Ibrahim, 1947-
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unknown - CC BY-SA 4.0
Casimir, John, Prince Of Anhalt-Dessau
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Colpoys, John, Sir, 1742?-1821
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Stephencdickson - CC BY-SA 4.0
Learmonth, James, 1895-1967
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Serov, A. N. (Aleksandr Nikolaevich), 1820-1871
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unknown - Public Domain
Romanov, Panteleĭmon, 1884-1938
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Public Domain
Beechey, Frederick William, 1796-1856
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unknown photographer - Public Domain
Rives, Amélie 1863-1945
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Pieck, Wilhelm, 1876-1960
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George Romney - Public Domain
Moser, Mary
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Public Domain
Bowen, George Ferguson, Sir, 1821-1899
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Helmut Montag - CC BY 3.0
Hayes, Louis, 1937-....
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Wilson, Charles Edward, 1886-1972
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Photographer is unknown, copyright holder Christine MacLeod - Public Domain
Brack, John, 1920-1999
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unknown - Public Domain
Royce, Stephen, 1787-1868
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Igor Palmin - CC BY-SA 2.0
Likhachev, Dmitriĭ Sergeevich
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nn - Public Domain
Chybiński, Adolf, 1880-1952
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Segrè, Emilio
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David Harpe - CC BY-SA 3.0
Tagliapietra, Lino
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Bain News Service, publisher - Public Domain
Cline, Maggie, 1857-1934
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Gougerot, Henri, 1881-1955
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Forey, Elie Frederic
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Bain News Service - Public Domain
Lipton, Thomas Johnstone, Sir, 1850-1931
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Paul Thompson - Public Domain
White, John P. (John Phillip), 1870-1934