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unknown - Public Domain
not stated - Public Domain
Gregpenn - CC BY-SA 4.0
Reuben Leslie Maynard - Public Domain
user at project -
Public Domain
Cornelis Bloemaert (1603-1684) - Public Domain
Photo by Tom Pich - Public Domain
Montrealfilmco - CC BY-SA 4.0
original uploader - Public Domain
L. U. Reavis, author. Western Engraving Company (St. Louis), engraver. - Public Domain
user at project - CC BY-SA 3.0
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Tierney, Lawrence, 1919-2002
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Johnston, Frances Benjamin, 1864-1952
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unknown - Public Domain
Kinney, Abbot, 1850-1920
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not stated - Public Domain
Hall, S. C. (Samuel Carter), 1800-1889
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Gregpenn - CC BY-SA 4.0
Walker, Don, 1907-1989
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Vandenberg, Arthur H. (Arthur Hendrick), 1907-1968
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Thurman, Robert A. F.
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Reuben Leslie Maynard - Public Domain
Bassett, Edward M. (Edward Murray), 1863-1948
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Read, Walter, 1855-1907
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Aulie, Reidar, 1904-1977
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Alexander III, Pope, -1181
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unknown - Public Domain
Chadwick, George Whitefield
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Nordling, Raoul, 1881-1962
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user at project -
Vilamajó, Julio, 1894-1948
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Public Domain
Barante, Amable-Guillaume-Prosper Brugière, baron de, 1782-1866
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Cornelis Bloemaert (1603-1684) - Public Domain
Boniface, Saint, Archbishop of Mainz, approximately 675-754
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Photo by Tom Pich - Public Domain
McIntosh, Tom, 1927-
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Montrealfilmco - CC BY-SA 4.0
L'Ecuyer, John, 1965-
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original uploader - Public Domain
Blackmer, Sidney, 1895-1973
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Boulay de la Meurthe, Antoine Jacques Claude Joseph, comte, 1761-1840
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Biggs, Janet, 1959-
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Rice, Alexander Hamilton, 1875-1956
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unknown - Public Domain
Hamilton, Charles Smith, 1822-1891
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Trosch, Robert
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Eötvös, Loránd, báró, 1848-1919
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John IV, King of Portugal, 1604-1656
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L. U. Reavis, author. Western Engraving Company (St. Louis), engraver. - Public Domain
Kennett, Luther Martin, 1807-1873
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user at project - CC BY-SA 3.0
Pendleton, Austin
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unknown - Public Domain
Lotti, Antonio, -1740
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Blainville, H.-M. Ducrotay de (Henri-Marie Ducrotay), 1777-1850