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unknown - Public Domain
Hartmann - Public Domain
Gérard Edelinck - Public Domain
Kedarvideo - CC BY-SA 3.0
William Manto - Public Domain
Bridget Smith / EmmaMI - Public Domain
Pagania62 - CC BY-SA 3.0
:de:Benutzer:Bernd Schwabe in Hannover - CC BY-SA 4.0
Clestur - CC BY-SA 3.0
Susannah B. F. Paletz - CC BY 3.0
original uploader - Public Domain
Proyecto Historiador 2 - CC BY-SA 3.0
Public Domain
Johann Elias Haid - Public Domain
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Dorsey, James Owen, 1848-1895
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Yorke, Charles Philip, 1764-1834
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unknown - Public Domain
Barron, Clarence W. (Clarence Walker), 1855-1928
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Le Vert, Octavia Walton, Mrs.
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Kearney, Denis, 1847-1907
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Hartmann - Public Domain
Powell, Baden, 1796-1860
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unknown - Public Domain
Einstein, Lewis, 1877-1967
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Gérard Edelinck - Public Domain
Marca, Pierre de 1594-1662
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Kedarvideo - CC BY-SA 3.0
Giger, H. R. (Hans Rudolf), 1940-
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William Manto - Public Domain
Martin, Clarence D. (Clarence Daniel), 1886-1955
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Bridget Smith / EmmaMI - Public Domain
Smith, Bridget, 1966-....
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Pagania62 - CC BY-SA 3.0
Szabados, György 1939-2011
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Zhang, Junmai, 1886-1969
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unknown - Public Domain
Sand, Karl Ludwig, 1795-1820
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:de:Benutzer:Bernd Schwabe in Hannover - CC BY-SA 4.0
Spengler, Andreas
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Clestur - CC BY-SA 3.0
Rautavaara, Einojuhani, 1928-....
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Taylor, Joseph E. (Joseph Edward), 1830-1913
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Susannah B. F. Paletz - CC BY 3.0
Moi, Toril.
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Cornelius, Thomas R.
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Dunlap, G. W. (George Washington), 1813-1880
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original uploader - Public Domain
Jensen, James A., 1918-
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unknown - Public Domain
Rosati, Joseph, 1789-1843
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unknown - Public Domain
Remondino, P. C. (Peter Charles), 1846-1926
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Proyecto Historiador 2 - CC BY-SA 3.0
Kinsey, Alfred C. (Alfred Charles), 1894-1956
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Caballero y Góngora, Antonio, 1723-1796
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Public Domain
Tomlin, John Read le Brockton, 1864-1954
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Pratt, Mr. (Samuel Jackson), 1749-1814
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Williams, Harland, 1962-
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Johann Elias Haid - Public Domain
Haid, Johann Jacob, 1704-1767
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Abercromby, Alexander Abercromby, Lord, 1745-1795