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Senpai - CC BY-SA 2.5
Forest Service, USDA - CC BY 2.0
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unknown - Public Domain
Published in an American literary arts publication in 1861. - Public Domain
John Plumbe, Jr. - Public Domain
Andiemusik1986 - CC BY-SA 3.0
Mathew Brady - Public Domain
неизвестный (unknown) - Public Domain
Eugène Maccown (1898-1966). - CC0 1.0
Jesus Elosegi Irazusta -
Public Domain
José Villegas Cordero - Public Domain
see above - Public Domain
Lisbeth Medbøe Risnes - CC BY-SA 4.0
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Farrell, Warren.
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Senpai - CC BY-SA 2.5
Collins, Paul, 1969-....
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Turgot, Michel-Étienne 1690-1751
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Odell, Maude, 1871-1937
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Clemens, Jeremiah, 1814-1865
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Forest Service, USDA - CC BY 2.0
Bradley, Nina Leopold, 1917-
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Jefferson, Martha, 1748-1782
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Internet Archive Book Images -
Smith, George Washington, 1876-1930
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Kelly, Petra Karin, 1947-1992
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Ferrer, José, 1912-1992
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Walt, Lewis W., 1913-
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Laval, Pierre, 1883-1945
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unknown - Public Domain
Biggs, J. Crawford (James Crawford), 1872-1960
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Published in an American literary arts publication in 1861. - Public Domain
Slicer, Henry, 1801-1874
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John Plumbe, Jr. - Public Domain
Binns, John, 1772-1860
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Andiemusik1986 - CC BY-SA 3.0
Ciani, Suzanne
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Mathew Brady - Public Domain
Keene, Laura, 1826-1873
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unknown - Public Domain
Lopatin, German Aleksandrovich, 1845-1918
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неизвестный (unknown) - Public Domain
Mao, Zedong, 1893-1976
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Eugène Maccown (1898-1966). - CC0 1.0
Crevel, René, 1900-1935
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Jesus Elosegi Irazusta -
Aguirre y Lecube, José Antonio de, 1904-1960
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Public Domain
Roosevelt, Archibald B. (Archibald Bulloch), 1894-1979
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Ildephonsus, Saint, approximately 610-667
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Litchfield, Edward H. (Edward Harold), 1914-1968
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José Villegas Cordero - Public Domain
Elliott, John, 1859-1925
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Morgan, John, 1735-1789
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see above - Public Domain
Lennep, J. van (Jacob), 1802-1868
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Lisbeth Medbøe Risnes - CC BY-SA 4.0
Thommessen, Olav Anton, 1946-....
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Holland, H. Russel (Hezekiah Russel), 1936-
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Mayr, Simon, 1763-1845