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Carl Wilhelm Vollgraff (?) - CC BY-SA 4.0
Vermutlich Elisabeth Krämer-Bannow - Public Domain
Public Domain
unknown - Public Domain
Georges Biard - CC BY-SA 3.0
*:File:CyrilSmith.jpg - CC BY 3.0
unknown - CC BY 4.0
George L. Cobb - CC BY-SA 4.0
w - Public Domain
Angelo Cairoli - Public Domain
Ossip Schubin - Public Domain
Fabio Venni - CC BY-SA 2.0
Unknown - Public Domain
(capsulated) - CC BY 2.0
Tycho Henderson - CC BY-SA 3.0
Walter J. Bigelow (1865-1935) - Public Domain
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Camden, J. N. (Johnson Newlon), 1828-1908
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Carl Wilhelm Vollgraff (?) - CC BY-SA 4.0
Huizinga, Johan, 1872-1945
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Pardo Bazán, Emilia, condesa de, 1852-1921
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Day, Jeffrey, 1896-1918
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Vermutlich Elisabeth Krämer-Bannow - Public Domain
Krämer, Augustin, 1865-1941
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Public Domain
Boggs, J. Caleb (James Caleb), 1909-1993
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unknown - Public Domain
Toplady, Augustus, 1740-1778
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Brooks, Caroline Shawk 1840-1913
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unknown - Public Domain
Dykes, Eva Beatrice, 1893-
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Georges Biard - CC BY-SA 3.0
Castaldi, Jean-Pierre, 1944-
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*:File:CyrilSmith.jpg - CC BY 3.0
Smith, Cyril, 1928-2010
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unknown - CC BY 4.0
Spalding, Baird T. (Baird Thomas), 1857-1953
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Sametz, Steven, 1954-
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Dodd, William, 1729-1777
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unknown - Public Domain
Salomon, Edward S. (Edward Selig), 1836-1913
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George L. Cobb - CC BY-SA 4.0
Cobb, George L., 1886-1942
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w - Public Domain
Tarbox, Increase N. (Increase Niles), 1815-1888
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Disney, David T. (David Tiernan), 1803-1857
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Laub, Thomas, 1852-1927
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Maw, Herbert B. (Herbert Brown), 1893-1990
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Angelo Cairoli - Public Domain
Barzaghi, Francesco 1839-1892
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Ossip Schubin - Public Domain
Schubin, Ossip, 1854-1934
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Fabio Venni - CC BY-SA 2.0
Cotton, Joseph
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Unknown - Public Domain
Ewell, Marshall Davis, 1844-1928
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(capsulated) - CC BY 2.0
Flux Pavilion, 1989-
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Mohler, R. Albert, Jr., 1959-
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Dethier, Gaston M. (Gaston Marie), 1875-1958
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Tycho Henderson - CC BY-SA 3.0
Benson, Michael, 1962-
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Tschirch, A. (Alexander), 1856-1939
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Walter J. Bigelow (1865-1935) - Public Domain
Weeks, John E. (John Eliakim), 1853-1949