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unknown - Public Domain
Martin Knoller - Public Domain
w - Public Domain
Tom Marcello - CC BY-SA 2.0
Stefan Brending (2eight -
Buchhändler - Public Domain
Men of Mark Publishing, Washington DC - Public Domain
Bergen Public Library Norway -
Stephen R. Riggs, author. W. G. Holmes (Chicago, IL), publisher. - Public Domain
UNU-WIDER - CC BY 2.0
Slowking4 -
Mariusz Kubik, Kmarius - CC BY-SA 3.0
U.S. Department of State - Public Domain
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unknown - Public Domain
Lewis, William H. (William Henry), 1868-1949
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Martin Knoller - Public Domain
Piermarini, Giuseppe, 1734-1808
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Boynton, Henry V. (Henry Van), 1835-1905
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w - Public Domain
Debus, Kurt H.
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Katz, Rudolf
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Tom Marcello - CC BY-SA 2.0
Shaw, Woody
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Stefan Brending (2eight -
Hormann, Sherry
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Scheurer-Kestner, Auguste, 1833-1899
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Buchhändler - Public Domain
Wranitzky, Anton, 1761-1820
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Men of Mark Publishing, Washington DC - Public Domain
Raymond, George Lansing, 1839-1929
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Andrews, S. J. (Sherlock James), 1801-1880
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Maxim, Hiram S. (Hiram Stevens), 1840-1916
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unknown - Public Domain
Johnson, Edward A. (Edward Austin), 1860-1944
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Bergen Public Library Norway -
Grieg, Nina
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Barkov, Ivan, 1732-1768
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Wergeland, H. (Harald), 1912-
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Stephen R. Riggs, author. W. G. Holmes (Chicago, IL), publisher. - Public Domain
Riggs, Stephen Return, 1812-1883
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Pelloe, Emily H
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Willimon, William H.
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unknown - Public Domain
Dwinelle, John W. (John Whipple), 1816-1881
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UNU-WIDER - CC BY 2.0
North, Douglass C. (Douglass Cecil)
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Slowking4 -
Seshadri, Vijay
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Fleischman, Paul
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Sénancour, Ètienne Pivert de, 1770-1846
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unknown - Public Domain
Carter, George Robert, 1866-1933
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Shannon, Ethel, 1898-1951
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Slowking4 -
Doctorow, E. L., 1931-2015
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Mariusz Kubik, Kmarius - CC BY-SA 3.0
Enzensberger, Hans Magnus
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U.S. Department of State - Public Domain
Museveni, Yoweri, 1944-
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Porter, John Addison, 1856-1900