Image from Wikimedia Commons
Mathew B. Brady Photographic Studio - Public Domain
unknown - Public Domain
Internet Archive Book Images - Public Domain
Gorupdebesanez - CC BY-SA 3.0
US Government, wanted poster, circulated circa - Public Domain
Michiel1972 - CC BY-SA 3.0
Litho by unknown artist - Public Domain
Bain News Service, publisher - Public Domain
Henry Reed Stiles - Public Domain
Georges Biard - CC BY-SA 3.0
author - Public Domain
Zeitschrift für Sukkulentenkunde - Public Domain
*:File:Sidney_Altman.jpg - Public Domain
Thierry Caro - CC BY-SA 3.0
Ag Andras - CC BY-SA 3.0
Image from Wikimedia Commons
Mathew B. Brady Photographic Studio - Public Domain
Brown, Harvey, 1795-1874
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unknown - Public Domain
Herzstark, Curt, 1902-1988
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Zell, F., 1829-1895
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Morgan, John Hunt, 1825-1864
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Digges, Dudley, 1879-1947
Image from Wikimedia Commons
Internet Archive Book Images - Public Domain
Tribolo, 1500-1550
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Gorupdebesanez - CC BY-SA 3.0
Kaufman, Philip, 1936-....
Image from Wikimedia Commons
US Government, wanted poster, circulated circa - Public Domain
Bergdoll, Grover Cleveland, 1893-1966
Image from Wikimedia Commons
unknown - Public Domain
Newell, William A. (William Augustus), 1817-1901
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Planchart, Alejandro Enrique.
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Michiel1972 - CC BY-SA 3.0
Cole, Lloyd
Image from Wikimedia Commons
Litho by unknown artist - Public Domain
Lindblad, Adolf Fredrik, 1801-1878
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Guglielmi, Pietro Alessandro, 1728-1804
Image from Wikimedia Commons
Bain News Service, publisher - Public Domain
Hersey, Mark Leslie, 1863-1934
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Livingston, Ron
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Henry Reed Stiles - Public Domain
Stiles, Henry Reed, 1832-1909
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Harris, J. Morrison (James Morrison), 1817-1898
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Claire, Ina, 1892-1985
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Georges Biard - CC BY-SA 3.0
Capuçon, Renaud
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Todd, Beverly, 1946-
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author - Public Domain
Handl, Jacob, 1550-1591
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Horton, Clara, 1904-1976
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Zeitschrift für Sukkulentenkunde - Public Domain
Rose, J. N. (Joseph Nelson), 1862-1928
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*:File:Sidney_Altman.jpg - Public Domain
Altman, Sidney
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Anjou, François, duc d', 1554-1584
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Bean, C. E. W. (Charles Edwin Woodrow), 1879-1968
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Thierry Caro - CC BY-SA 3.0
Quivrin, Jocelyn
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Eckart, Carl, 1902-1973
Image from Wikimedia Commons
Ag Andras - CC BY-SA 3.0
Barioni, Daniele, 1930-
Image from Wikimedia Commons
unknown - Public Domain
Greig, Samuel, 1735-1788