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dirtybob@dirtybob.com - CC BY 2.5
unknown - Public Domain
Marion S. Trikosko - Public Domain
Ron Kroon / Anefo - CC BY-SA 3.0
Mathew Brady Levin Corot Handy - Public Domain
Henri Manuel - Public Domain
he - CC BY-SA 3.0
George Grantham Bain Collection (Library of Congress) - Public Domain
Mariusz Kubik, http://www.mariuszkubik.pl - CC BY 3.0
Bain News Service - Public Domain
Public Domain
Opus88888 - CC BY-SA 3.0
Ephraim Morgan - Public Domain
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Cactus And Succulent Society Of America - CC BY-SA 2.5
U.S. Government - Public Domain
Bill Douglas - CC BY-SA 3.0
Irv Nahan Philadelphia-management. - Public Domain
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dirtybob@dirtybob.com - CC BY 2.5
Million, Tiffany 1966-....
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unknown - Public Domain
Creswick, William, 1813-1888
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Scudder, Hubert Baxter, 1888-1968
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unknown - Public Domain
Bramuglia, Juan Atilio, 1903-1962
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Marion S. Trikosko - Public Domain
X, Malcolm, 1925-1965
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Ron Kroon / Anefo - CC BY-SA 3.0
Neild, R. R.
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Mathew Brady Levin Corot Handy - Public Domain
Potter, Clarkson Nott, 1825-1882
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Henri Manuel - Public Domain
Valéry, Paul, 1871-1945
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Barron, Samuel, 1809-1888
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he - CC BY-SA 3.0
Elon, Emunah
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Fowler, J. M. (James Mackinnon), 1865-1940
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George Grantham Bain Collection (Library of Congress) - Public Domain
Bailey, H. C. (Henry Christopher), 1878-1961
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Mariusz Kubik, http://www.mariuszkubik.pl - CC BY 3.0
Koprowski, Hilary
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Burchenal, Elizabeth, 1877-1959
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Bain News Service - Public Domain
Youngs, Ross, 1897-1927
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Delany, Dana
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Public Domain
Hodge, John R. (John Reed), 1893-
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Randall, William J.
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Opus88888 - CC BY-SA 3.0
Tyāgarāja, Swāmi, 1767-1847
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Ephraim Morgan - Public Domain
Morgan, Ephraim Franklin, 1869-1950
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unknown - Public Domain
Du Toit, Stefanus Jacobus, 1847-1911
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Wiki name - CC BY-SA 3.0
Smith, Ashbel, 1805-1886
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Cactus And Succulent Society Of America - CC BY-SA 2.5
Pittier, Henri, 1857-1950
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George Grantham Bain Collection (Library of Congress) - Public Domain
Seaman, Owen, 1861-1936
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Bain News Service - Public Domain
Holmes, John Haynes, 1879-1964
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Phelps, Charles E. (Charles Edward), 1833-1908
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U.S. Government - Public Domain
Hawkins, Jack, 1920-
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Bill Douglas - CC BY-SA 3.0
Douglas, Bill, 1944-....
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Irv Nahan Philadelphia-management. - Public Domain
Patkin, Max
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Fischer, Johann Christian, 1733-1800