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original uploader - Public Domain
unknown - Public Domain
Nadar (Gaspard-Félix Tournachon) (French, 1820-1910) - Public Domain
:en:WLS-TV - Public Domain
Marilyn K. Morton -
an Anderson of Springfield, Illinois - Public Domain
不詳 - Public Domain
NN - CC BY-SA 4.0
Samuel Hart - Public Domain
Allan warren - CC BY-SA 3.0
Mathew Brady Levin Corot Handy - Public Domain
Steve Punter - CC BY 2.0
US Government Printing Office - Public Domain
MarkB1975 - CC BY-SA 4.0
Peter Lely - Public Domain
Editors: Jeanie Strecker and Ruth Ann Packer - Public Domain
Truchelut & Valkman - Public Domain
Alexander Sutherland (book author) - Public Domain
US gov - Public Domain
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original uploader - Public Domain
Sagasta, Práxedes Mateo 1825-1903
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unknown - Public Domain
Clum, John P., 1851-1932
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Nadar (Gaspard-Félix Tournachon) (French, 1820-1910) - Public Domain
Champfleury, 1821-1889
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Gilmore, Charles W. (Charles Whitney), 1874-1945
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:en:WLS-TV - Public Domain
Nelson, David, 1936-2011
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Marilyn K. Morton -
Bailey, DeFord, 1899-1982
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Breck, James Lloyd, 1818-1876
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an Anderson of Springfield, Illinois - Public Domain
Iles, Elijah, 1796-
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Ellis, William, 1794-1872
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Méchain, Pierre, 1744-1804
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不詳 - Public Domain
Lim, Robert K.S. (Robert Kho-Seng), 1897-1969
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NN - CC BY-SA 4.0
Santi, Sebastiano 1789-1865
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unknown - Public Domain
Powers, John Robert
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Soxhlet, Franz von
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Samuel Hart - Public Domain
Roots, Logan Herbert, Bishop, 1870-1945
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Allan warren - CC BY-SA 3.0
Niven, David, 1910-1983
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Mathew Brady Levin Corot Handy - Public Domain
Errett, Russell
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Steve Punter - CC BY 2.0
Hamilton, Christine
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US Government Printing Office - Public Domain
Weber, Vin
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Crozier, Francis Rawdon Moira, 1796-1848
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MarkB1975 - CC BY-SA 4.0
Townshend, Fuzz
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Fonssagrives-Penn, Lisa 1911-1992
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Peter Lely - Public Domain
Holmes, Robert, Sir, 1622-1692
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Editors: Jeanie Strecker and Ruth Ann Packer - Public Domain
Dyer, Alvin R. (Alvin Rulon), 1903-1977
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Beames, John, 1837-1902
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Truchelut & Valkman - Public Domain
Charton, Édouard (1807-1890).
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unknown - Public Domain
Lyman, Theodore, 1792-1849
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Alexander Sutherland (book author) - Public Domain
Lonsdale, William, 1799-1864
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US gov - Public Domain
Phelps, Samuel Shethar, 1793-1855
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Lenox, James, 1800-1880