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Canada Jack - CC BY-SA 3.0
unknown -
sfllaw - CC BY-SA 2.0
Harris & Ewing - Public Domain
Acoma - CC BY 3.0
Andy Newcombe - CC BY-SA 2.0
Charles Balthazar Julien Fevret de Saint-Memin - Public Domain
Rishel, Joseph J. - Public Domain
Pressens Bild - Public Domain
Gilberto - CC BY 2.0
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Pierre Choumoff - Public Domain
Civil War glass negative collection (Library of Congress) - Public Domain
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National Photo Company - Public Domain
Fries, Amos A. (Amos Alfred), 1873-1963
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Clark, Lewis Gaylord, 1808-1873
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Hardy, Leonard Wilford, 1805-1884
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Canada Jack - CC BY-SA 3.0
Newlove, John, 1938-....
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unknown -
Martin, Lillien Jane, 1851-1943
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Brillouin, Léon, 1889-1969
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sfllaw - CC BY-SA 2.0
Allen, Anita L., 1953-....
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Pingree, Samuel Everett, 1832-1922
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Harris & Ewing - Public Domain
Berryman, Clifford Kennedy, 1869-1949
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Acoma - CC BY 3.0
Charles, d'Orléans, 1394-1465
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Andy Newcombe - CC BY-SA 2.0
Bluiett, Hamiet
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Charles Balthazar Julien Fevret de Saint-Memin - Public Domain
Holmes, David, 1770-1832
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Follett, Ken
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Dunlap, Robert H., 1920-2000
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Rishel, Joseph J. - Public Domain
Berjon, Antoine, 1754-1843
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Pressens Bild - Public Domain
Dahlberg, Gunnar, 1893-1956
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Spalding, A. G. (Albert Goodwill)
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Panin, Nikita Ivanovich, graf, 1718-1783
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Gilberto - CC BY 2.0
Stamm, Marvin, 1939-
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Furness, William Henry, 1802-1896
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Huntingdon, Francis Hastings, Earl of, 1728-1789
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Aronsohn, Lee
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Morris, J. R. (James Remley), 1819-1899
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Pierre Choumoff - Public Domain
Gleizes, Albert, 1881-1953
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Branting, Hjalmar, 1860-1925
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Civil War glass negative collection (Library of Congress) - Public Domain
Taylor, Walter Herron, 1838-1916
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Sullivan, Edmund J. (Edmund Joseph), 1869-1933
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Cope, E. D. (Edward Drinker), 1840-1897
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Roche, T. C.
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Steel, Flora Annie Webster, 1847-1929