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Impy4ever - Public Domain
anonymous - Public Domain
Martin Bernigeroth - Public Domain
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jeanbaptisteparis - CC BY-SA 2.0
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Mather, Cotton, 1663-1728
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Matia, Paul R. (Paul Ramon), 1937-
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Nightscream - CC BY 3.0
Marder, Larry
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Stuart Ramson/InsiderImages for Scholastic - CC BY 2.0
Shannon, David, 1959-....
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Impy4ever - Public Domain
Thoms, William John, 1803-1885
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Parkes, Henry, Sir, 1815-1896
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Blair, Francis Preston, 1791-1876
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anonymous - Public Domain
Hays, Margaret G., 1874-1925.
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White, Thomas, 1593-1676
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Bjerknes, V. (Vilhelm), 1862-1951
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Wirth, Joseph, 1879-1956
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Verbitsky, Bernardo
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Brayer, Yves, 1907-1990
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Gagliano, Marco da 1582-1643
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Cantor, Georg, 1845-1918
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Martin Bernigeroth - Public Domain
Schamberger, Caspar, 1623-1706
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P0mbal - Public Domain
Fry, Maxwell, 1899-1987
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Rainier, Peter, 1741-1808
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Satz, Ludwig, 1891-1944
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Chase, Ken
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Hermann Blumenthal - CC BY 2.0
Blumenthal, Hermann, 1905-1942
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jeanbaptisteparis - CC BY-SA 2.0
Drucker, Johanna, 1952-....
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Burney, Leroy E. (Leroy Edgar), 1906-1998
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Robertson, John, Sir, 1816-1891
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Fiske, George, 1835-1918
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Seelye, Julius H. (Julius Hawley), 1824-1895
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Hchristophersen - CC BY-SA 3.0
Camre, Mogens
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Julian Vannerson (1827-1875) - Public Domain
Royce, Homer Elihu, 1819-1891
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McSpadden, Clem, 1925-2008
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Dynastar - CC BY-SA 3.0
Warren, Charles Marquis, 1912-1990