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Civil War glass negative collection (Library of Congress) - Public Domain
original uploader - Public Domain
Photo by Rio V. De Sieux - Public Domain
unknown - Public Domain
Public Domain
Robobix - CC BY-SA 4.0
HarvardEthics - CC BY 2.0
Robert Boissard - Public Domain
Valentin Schertle - Public Domain
William Davey (1844 – 1925). Published by The Rotary Photographic Co. Ltd of London, England who closed in April, 1916. - Public Domain
Tina Modotti - Public Domain
Dunnope12 - CC BY-SA 3.0
W. W. Foster - Public Domain
Washington Times - Public Domain
NBC Television - Public Domain
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Civil War glass negative collection (Library of Congress) - Public Domain
Miles, Dixon Stansbury, 1804-1862
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Keating, Kenneth B. (Kenneth Barnard), 1900-1975
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original uploader - Public Domain
Gzowski, C. S. (Casimir Stanislaus), Sir, 1813-1898
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Photo by Rio V. De Sieux - Public Domain
Yuan, Shikai, 1859-1916
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Kordecki, Augustyn, 1603-1673
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Kujō, Kanezane, 1149-1207
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unknown - Public Domain
Thompson, Meriwether Jeff, 1826-1876
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Hilgard, Eugene W. (Eugene Woldemar), 1833-1916
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Public Domain
McKean, Samuel, 1787-1841
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Robobix - CC BY-SA 4.0
Christiansen, C. (Christian), 1843-1917
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Thomas, Dylan, 1914-1953
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HarvardEthics - CC BY 2.0
Wolff, Jonathan, 1959-
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Robert Boissard - Public Domain
Chemnitz, Martin, 1522-1586
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Valentin Schertle - Public Domain
Fröbel, Julius, 1805-1893
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Nabors, Jim, 1930-
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Anaxágoras
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Accursio, Mariangelo, 1489-1546
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Beckmann, Johann, 1739-1811
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William Davey (1844 – 1925). Published by The Rotary Photographic Co. Ltd of London, England who closed in April, 1916. - Public Domain
Fragson, Harry
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Bourdon, Rosario, 1885-1961
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Dorsey, James Owen, 1848-1895
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Tina Modotti - Public Domain
Rodríguez Lozano, Manuel, 1895-1971
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Dunnope12 - CC BY-SA 3.0
Greenberg, Irving, 1933-....
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W. W. Foster - Public Domain
Norris, Robert O. (Robert Opie), 1882-1960
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Washington Times - Public Domain
Harris, Henry B. (Henry Birkhardt), 1866-1912
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unknown - Public Domain
Tappan, Henry Philip, 1805-1881
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Origen
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Beakes, Samuel W. (Samuel Willard), 1861-1927
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Allman, George Johnston, 1824-1904
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NBC Television - Public Domain
Pyle, Denver