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City of Boston - CC BY 2.0
Not specified, owned by John F. Kennedy Presidential Library and Museum, Boston - Public Domain
Unbekannter Fotograf der Epoche. - Public Domain
Origafoundation - CC BY-SA 3.0
Romano.patti - CC BY-SA 3.0
Unknown - See Source entry for original 'publication' - Public Domain
Pigsonthewing - CC BY-SA 3.0
original uploader - Public Domain
Sbarmak - CC BY-SA 3.0
PaulBernard - Public Domain
unknown - Public Domain
Unknown engraver - Public Domain
Agence Rol - Public Domain
http://1.bp.blogspot.com - Public Domain
U.S. DoD - Public Domain
Original uploader was :ro:Nicolae Coman - Public Domain
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City of Boston - CC BY 2.0
Cass, Melnea A. (Melnea Agnes), 1896-1978
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Not specified, owned by John F. Kennedy Presidential Library and Museum, Boston - Public Domain
Hemingway, Jack, 1923-2000
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Unbekannter Fotograf der Epoche. - Public Domain
Kampf, Arthur, 1864-1950
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Schönborn, Lothar Franz von, 1655-1729
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Origafoundation - CC BY-SA 3.0
Raymond, Alex, 1909-1956
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Gäumann, Ernst Albert, 1893-1963
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Gevaert, F.A. (François Auguste), 1828-1908
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Romano.patti - CC BY-SA 3.0
Cagnoni, Romano
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Unknown - See Source entry for original 'publication' - Public Domain
Pennington, James W.C.
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Pigsonthewing - CC BY-SA 3.0
Timmins, Samuel, 1826-1902
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Young, Rida Johnson
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original uploader - Public Domain
Collier, William Miller, 1867-1956
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Sbarmak - CC BY-SA 3.0
Barmak, Siddiq
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Ansorge, Conrad, 1862-1930
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Bucknill, Thomas Townsend, Sir, 1845-1915
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Righini, Vincenzo, 1756-1812
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Hall, Durward G. (Durward Gorham), 1910-2001
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PaulBernard - Public Domain
Decaux, Abel
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Rose, of Lima, Saint, 1586-1617
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unknown - Public Domain
Jordan, Elizabeth Garver, 1867-1947
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Unknown engraver - Public Domain
Sprague, William B. (William Buell), 1795-1876
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Agence Rol - Public Domain
De Rothschild, J. A. (James Armand), 1878-1957
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http://1.bp.blogspot.com - Public Domain
Felkin, Robert
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Tucker, Thomas Tudor, 1745-1828
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Wappers, G. (Gustaf), 1803-1874
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Agron, Gershon, 1894-1959
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U.S. DoD - Public Domain
Mandrell, Barbara.
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Goodwin, Harvey, 1818-1891
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Porter, William Trotter, 1809-1858
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Original uploader was :ro:Nicolae Coman - Public Domain
Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 11-1288