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unknown - Public Domain
Christoffel Lubienietzky - Public Domain
Unknown author - Public Domain
South Dakota State Historical Society - Public Domain
BONI AND LIVERIGHT, INC. - Public Domain
Open Media Ltd. - CC BY-SA 3.0
Unknown; processed and uploaded by Michael Romanov - Public Domain
US Department of State - Public Domain
:de:Samuel Lovett Waldo - Public Domain
original uploader - Public Domain
Charles Bernhoeft -
Radcliffe Kelso - CC BY 4.0
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Samaranch, Juan Antonio
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Opie, John, 1761-1807
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Halm, Karl, 1809-1882
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unknown - Public Domain
Luzzatto, Philoxène, 1829-1854
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Christoffel Lubienietzky - Public Domain
Sassetti, Filippo, 1540-1588
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Manker, Paulus
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Unknown author - Public Domain
Costa, Alexandrina Maria da 1904-1955
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South Dakota State Historical Society - Public Domain
Church, Louis Kossuth, 1846-1898
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Campbell, James, 1812-1893
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Speyer, Edgar, 1862-1932
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BONI AND LIVERIGHT, INC. - Public Domain
Kemp, Harry, 1883-1960
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Trajan, Emperor of Rome, 53-117
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Open Media Ltd. - CC BY-SA 3.0
Masson, J. Moussaieff (Jeffrey Moussaieff), 1941-
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Hull, Thomas, 1728-1808
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Fornander, Abraham, 1812-1887
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Paget, Debra, 1933-....
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Bunker, Chang, 1811-1874
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Unknown; processed and uploaded by Michael Romanov - Public Domain
Scott, John Walter
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US Department of State - Public Domain
Swindler, Mary Hamilton, 1884-1967
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Fontenelle, M. de (Bernard Le Bovier), 1657-1757
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Pope, John Russell, 1874-1937
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Letelier, Orlando
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Schoonmaker, Thelma.
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:de:Samuel Lovett Waldo - Public Domain
Nettleton, Asahel, 1783-1844
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original uploader - Public Domain
Crabtree, Lotta, 1847-1924
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Morris, Lewis, 1726-1798
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Charles Bernhoeft -
Bernhoeft, C. (Charles), 1859-1933
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Lapersonne, Félix Joseph de, 1853-1937
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Radcliffe Kelso - CC BY 4.0
Olsen, Kristina, 1957-
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Fulkerson, Abram, 1834-1902