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Creator - Public Domain
Carl Van Vechten - Public Domain
Gage Skidmore - CC BY-SA 3.0
Syrian - CC BY-SA 4.0
Metallurgist - Public Domain
original uploader - Public Domain
SUN RISE (book), Oil (Unknown) - Public Domain
unknown - Public Domain
signature on the engraving - Public Domain
Al Aumuller, World-Telegram staff photographer - Public Domain
Riley's Autographs - CC BY 3.0
Vyacheslav Lypynsky - Public Domain
Not provided - Public Domain
Slattery08 - CC BY-SA 4.0
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Predieri, Luca Antonio, 1688-1767
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Kirwan, Richard, 1733-1812
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Creator - Public Domain
Young, Brigham, 1801-1877
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Carl Van Vechten - Public Domain
Drake, Alfred, 1914-1992
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Pitcairn, John, 1841-1916
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Thurber, James, 1894-1961
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Carter, Lin
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Gage Skidmore - CC BY-SA 3.0
Schlafly, Phyllis, 1924-2016
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Syrian - CC BY-SA 4.0
Mayer, Luigi
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Ross, Donald J., 1872?-1948
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Metallurgist - Public Domain
Alexander, Archibald Stevens, 1906-1979
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original uploader - Public Domain
Gzowski, C. S. (Casimir Stanislaus), Sir, 1813-1898
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SUN RISE (book), Oil (Unknown) - Public Domain
Pavón, José Ignacio, 1791-1866
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unknown - Public Domain
Tulou, Jean-Louis, 1786-1865
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Neri, Filippo, Saint, 1515-1595
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signature on the engraving - Public Domain
Harper, James, 1795-1869
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Mayr, Simon, 1763-1845
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Al Aumuller, World-Telegram staff photographer - Public Domain
Sandoz, Mari, 1896-1966
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Powell, Leven, 1737-1810
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Riley's Autographs - CC BY 3.0
Summerall, Pat
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unknown - Public Domain
Judenkünig, Hans, approximately 1450-1526
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Vyacheslav Lypynsky - Public Domain
Lypynsʹkyĭ, Vi︠a︡cheslav, 1882-1931
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Cooper, Jackie, 1922-2011
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Albrechtsberger, Johann Georg
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Menken, Helen, 1902-1966
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Not provided - Public Domain
Baranov, Aleksandr Andreevich, 1745-1819
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original uploader - Public Domain
Goetz, Hermann, 1840-1876
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unknown - Public Domain
Calandra, Davide, 1856-1915
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Slattery08 - CC BY-SA 4.0
Cruz, Emilio, 1938-
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Wrangham, Francis, 1769-1842