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unknown - Public Domain
David Easton -
'''Rastrojo - CC BY-SA 3.0
William Bond - Public Domain
Gunnar Hovgård - CC BY 2.0
Unknown, retouched by Afernand74 - Public Domain
original uploader - Public Domain
Minya Diez-Dührkoop (* 1873 - † 1929) - Public Domain
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Jensen, Georg Arthur, 1866-1935
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Buckland, Ralph Pomeroy, 1812-1892
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Kerr, John Bozman, 1809-1878
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Knaus, Ludwig, 1829-1910
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unknown - Public Domain
Collier, John, 1884-1968
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Stifter, Adalbert, 1805-1868
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David Easton -
Easton, David, 1917-....
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'''Rastrojo - CC BY-SA 3.0
Camus, Mario, 1935-....
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Delbanco, Nicholas.
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William Bond - Public Domain
Douglas, John, 1721-1807
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Gunnar Hovgård - CC BY 2.0
Mazur, Marilyn
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Unknown, retouched by Afernand74 - Public Domain
Olbrich, Joseph Maria, 1867-1908
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Alströmer, Clas, friherre, 1736-1794
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Boumédiene, Houari, 1932-1978
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original uploader - Public Domain
Ward, Edward John, 1899-1963
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Maiden, J.H. (Joseph Henry), 1859-1925
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Minya Diez-Dührkoop (* 1873 - † 1929) - Public Domain
Brauer, Max, 1887-
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Hand, Learned, 1872-1961
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Belmont, Perry, 1850-1947
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Montelius, Oscar, 1843-1921
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Lambuth, W. R. (Walter Russell), 1854-1921
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unknown - Public Domain
Dayot, Armand, 1851-1934
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Benassi, Benny
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Kogan, Leonid
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Hall, Asaph, 1829-1907
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Thielicke, Helmut, 1908-1986
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unknown - Public Domain
Willcocks, William, Sir, 1852-1932
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Moore, Clayton, 1914-1999
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Ranney, R. P. (Rufus Percival), 1813-1891
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Barillé, Albert