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unknown - Public Domain
Andrea Soldi - Public Domain
*:File:Milo1965.jpg - Public Domain
Mathew Brady - Public Domain
U.S. National Park Service - Public Domain
L. Perini - Public Domain
Jeff Hitchcock - CC BY 2.0
The Strobridge Litho. Co., Cin'ti & New York - Public Domain
Beaufort, Birmingham - Public Domain
Allan warren - CC BY-SA 3.0
Henry Bone (1755-1834) - Public Domain
Schaeffer Studio - Public Domain
(…) Punt / Anefo - CC BY-SA 3.0
Archibald Skirving - Public Domain
NA - Public Domain
Miller Center - CC BY 2.0
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unknown - Public Domain
Standing, Herbert, 1846-1923
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Weatherall, D. J.
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Andrea Soldi - Public Domain
Wright, James, Sir, 1716-1785
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Grant, Francis J. (Francis James), Sir, 1863-1953
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Billings, Franklin S. (Franklin Swift), 1862-1935
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Arnstein, Karl, 1887-
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*:File:Milo1965.jpg - Public Domain
Milo, Sandra
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Lysons, Daniel, 1762-1834
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Mathew Brady - Public Domain
Kelley, Benjamin F., 1807-1891
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Carter, Jared
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Hoppe-Seyler, Félix, 1825-1895
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U.S. National Park Service - Public Domain
Walsh, Lawrence E.
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Wiseman, Nicholas Patrick, 1802-1865
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L. Perini - Public Domain
Gully, James Manby, 1808-1883
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Jeff Hitchcock - CC BY 2.0
Gale, Lorena
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The Strobridge Litho. Co., Cin'ti & New York - Public Domain
Carter, Leslie, Mrs., 1862-1937
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unknown - Public Domain
Ebey, Isaac Neff, 1818-1857
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Beaufort, Birmingham - Public Domain
Heap, Charles Swinnerton
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Keir, James, 1735-1820
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Allan warren - CC BY-SA 3.0
Fairbanks, Douglas, 1909-2000.
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Krapp, Herbert J., 1886?-1973
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Henry Bone (1755-1834) - Public Domain
Bloomfield, Robert, 1766-1823
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Peel, Arthur Wellesley Peel, Viscount, 1829-1912
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Gallo, Fortune T., 1878-1970
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Schaeffer Studio - Public Domain
Raney, Wayne, 1920-
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(…) Punt / Anefo - CC BY-SA 3.0
Sauvagnargues, Jean
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Ernst I, Duke of Saxe-Gotha, 1601-1675
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Archibald Skirving - Public Domain
Skirving, Archibald, 1749-1819
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NA - Public Domain
Chaudoir, M. de (Maximilien), baron, 1817-1881
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Miller Center - CC BY 2.0
Alexander, Michelle