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Universal Film Manufacturing Company - Public Domain
Bachrach - Public Domain
Public Domain
Sodiq1113 - CC BY-SA 4.0
unknown - Public Domain
Ron Kroon (Anefo) -
Royal Bank of Canada - Public Domain
James Henry Stine, author. Gibson Bros. (Washington, DC), publisher. - Public Domain
John & Charles Watkins - Public Domain
Raven Underwood - CC BY 2.0
No photographer credited. - Public Domain
F. Michaud - Public Domain
Internet Archive Book Images -
Sally Larsen - CC BY-SA 3.0
Bede735c - CC BY-SA 3.0
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McGuffey, William Holmes, 1800-1873
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Universal Film Manufacturing Company - Public Domain
Sargent, Lewis, 1903-1970
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Morellet, François
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Rethel, Alfred, 1816-1859
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Bachrach - Public Domain
Abbot, C.G. (Charles Greeley), 1872-1973
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Johnson, Malvin Gray, 1896-1934
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Public Domain
Blow, Henry T. (Henry Taylor), 1817-1875
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Morgan, Lady, (Sydney), 1783-1859
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Nozick, Robert, 1938-2002
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Sodiq1113 - CC BY-SA 4.0
Soliḣ, Muḣammad
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Public Domain
Stojadinović, Milan, 1888-1961
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Menard, Henry W. (Henry William), 1920-1986
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unknown - Public Domain
McCabe, Joseph, 1867-1955
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Boughton, George Henry, 1834-1905
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Antoninus Pius, Emperor of Rome, 86-161
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Ron Kroon (Anefo) -
Sorel, Jean, 1934-....
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Royal Bank of Canada - Public Domain
Davis, Mortimer
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Jenner, Edward, 1749-1823.
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unknown - Public Domain
Garesché, Julius P. (Julius Peter), 1821-1862
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James Henry Stine, author. Gibson Bros. (Washington, DC), publisher. - Public Domain
Osborne, Edwin S. (Edwin Sylvanus), 1839-1900
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John & Charles Watkins - Public Domain
Grey, George, Sir, 1799-1882
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Grasty, Charles H.
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Raven Underwood - CC BY 2.0
Bain, Barbara, 1932-
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Liu, Hung, 1948-
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No photographer credited. - Public Domain
Gaynor, Jessie L., 1863-1921
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Lai, Shengchuan
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F. Michaud - Public Domain
Lacretelle, Pierre-Louis de 1751-1824
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Internet Archive Book Images -
Draper, A. S. (Andrew Sloan), 1848-1913
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Sally Larsen - CC BY-SA 3.0
Hosoe, Eikō, 1933-
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Bede735c - CC BY-SA 3.0
Murphey, Michael, 1945-