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Smedina - CC BY-SA 3.0
BerniniPoussin - CC BY-SA 4.0
not identified - Public Domain
:de:Samuel Lovett Waldo - Public Domain
Western Biographical Publishing Company (Cincinnati, OH), publisher - Public Domain
DS Publications - Public Domain
Peter_Ellis - CC BY-SA 3.0
Hare2011 - CC BY-SA 3.0
Mathew Brady Levin Corot Handy - Public Domain
Hillebrant Jacobsz. van Wouw I - Public Domain
unknown - Public Domain
US Government Printing Office - Public Domain
Bain News Service; Uploaded by Calliopejen - Public Domain
Gage Skidmore - CC BY-SA 3.0
Thomas Charles Wageman[http://www.rubylane.com/shops/quiarte/item/00051] - Public Domain
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Smedina - CC BY-SA 3.0
Reiter, Wellington, 1957-
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Swinden, Jan Hendrik van 1746-1823
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Cathedral Basilica of San Francisco de Asis (Santa Fe, N.M.)
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Crane, Norma, 1931-1973
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BerniniPoussin - CC BY-SA 4.0
Esterly, David.
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not identified - Public Domain
Watt, W. A. (William Alexander), 1871-
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Colby, C. C. (Charles Carroll), 1827-1907
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Cole, Paula, 1968-
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:de:Samuel Lovett Waldo - Public Domain
Nettleton, Asahel, 1783-1844
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Western Biographical Publishing Company (Cincinnati, OH), publisher - Public Domain
Chipman, Henry, 1784-1867
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Dellet, James, 1788-1848
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DS Publications - Public Domain
Fine, Sylvia
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Peter_Ellis - CC BY-SA 3.0
Nicholls, Doug, 1906-1988
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Hare2011 - CC BY-SA 3.0
Hare, Dennis, 1946-
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Mathew Brady Levin Corot Handy - Public Domain
Cessna, John, 1821-1893
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Carrel, Alexis, 1873-1944
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Hillebrant Jacobsz. van Wouw I - Public Domain
Verdugo, Francisco
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Mangano, Silvana, 1930-1989
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Apitz, Bruno
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unknown - Public Domain
Brown, Aaron V. (Aaron Venable), 1795-1859
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US Government Printing Office - Public Domain
Murphy, John M., 1926-
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Restarick, Henry Bond, 1854-1933
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Bain News Service; Uploaded by Calliopejen - Public Domain
Gish, Lillian, 1893-1993
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Bayard, Hippolyte, 1801-1887
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Tuckney, Anthony, 1599-1670
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Gage Skidmore - CC BY-SA 3.0
Smits, Jimmy
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Mathew Brady Levin Corot Handy - Public Domain
Ely, Smith, 1825-1911
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Tumulty, Joseph P. (Joseph Patrick), 1879-1954
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Mathew Brady Levin Corot Handy - Public Domain
Conover, Simon Barclay, 1840-1908
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Thomas Charles Wageman[http://www.rubylane.com/shops/quiarte/item/00051] - Public Domain
Maxwell, Murray, Sir, 1775-1831