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unknown - Public Domain
Public Domain
Walter Barlow Stevens, author. S. J. Clarke Publishing (St. Louis, MO), publisher. - Public Domain
Mercury Artists Corp., New York - Public Domain
GFHund - CC BY 3.0
Amy Richard - CC BY-SA 3.0
Rda6316 - Public Domain
Stein - Public Domain
Jegelewicz - CC BY-SA 3.0
unknown photographer - Public Domain
Chatsam - CC BY-SA 3.0
Tulane Public Relations - CC BY 2.0
Gottlieb, William P. via The Library of Congress - Public Domain
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unknown - Public Domain
Geddes, James, 1763-1838
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White, Clarence H., 1871-1925
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Massachusetts Institute of Technology
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Silliman, Benjamin, 1779-1864
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Walthall, Henry B. (Henry Brazeale), 1878-1936.
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Public Domain
Ruger, Thomas Howard, 1833-1907
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Public Domain
Gibson, Ernest W. (Ernest Willard), 1872-1940
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Alary, abbé, 1690-1770
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Massey, Raymond.
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Walter Barlow Stevens, author. S. J. Clarke Publishing (St. Louis, MO), publisher. - Public Domain
Lane, William Carr, 1789-1863
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Warre, Edmond, 1837-1920
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Segal, Vivienne
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Corwin, Edward S. (Edward Samuel), 1878-1963
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Hungerford, Charles Frederick Algernon Portal, Viscount Portal of, 1893-1971
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Mercury Artists Corp., New York - Public Domain
Gilbert, Billy, 1893-1971
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Talbot, Bryan
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Sangster, Margaret Elizabeth Munson, 1838-1912
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GFHund - CC BY 3.0
Kossel, W. (Walther Ludwig Julius), 1888-1956
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Amy Richard - CC BY-SA 3.0
Appel, Libby, 1937-....
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unknown - Public Domain
Brian, Havergal
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Clare, of, Assisi, Saint, 1194-1253
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Rda6316 - Public Domain
De Aragon, Ray John
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Stein - Public Domain
Stout, James Huff, 1848-1910
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GFHund - CC BY 3.0
London, Fritz, 1900-1954
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Jegelewicz - CC BY-SA 3.0
Schmidt, Karl Patterson, 1890-1957
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unknown photographer - Public Domain
Robinson, James Harvey, 1863-1936
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Chatsam - CC BY-SA 3.0
Lacombe, Georges, 1868-1916
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Tulane Public Relations - CC BY 2.0
Eisenberg, Deborah
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Arctowski, Henryk, 1871-1958
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Gottlieb, William P. via The Library of Congress - Public Domain
Steinweiss, Alex, 1917-2011