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Helen Milligan - CC BY-SA 3.0
unknown - Public Domain
Maryland State Archives - Public Domain
NordCaroline - CC BY-SA 4.0
J.J. Frey - Public Domain
anonymous -
Judae1 - CC BY-SA 3.0
user at project - Public Domain
U.S. Army Signal Corps - Public Domain
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Spooner, W. A. (William Archibald), 1844-1930
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Helen Milligan - CC BY-SA 3.0
Milligan, Helen
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Gley, E. (Eugène), 1857-1930
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Feilden, H.W. (Henry Wemyss), 1838-1921
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unknown - Public Domain
Kirkpatrick, William, 1769-1832
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Samuelson, Paul A. (Paul Anthony), 1915-2009
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Washington, Henry S. (Henry Stephens), 1867-1934
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Maryland State Archives - Public Domain
Pratt, Enoch, 1808-1896
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Shepherd, Cybill, 1950-....
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NordCaroline - CC BY-SA 4.0
Hagstromer, Sven
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Romney, Miles, 1806-1877
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Chaplain, Jules-Clément, 1839-1909
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Walker, Clifford, 1877-
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J.J. Frey - Public Domain
Wild, James (British architect, 1814-1892)
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anonymous -
Lhotka, Fran, 1883-1962
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Judae1 - CC BY-SA 3.0
Sculley, John.
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user at project - Public Domain
Crile, George
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unknown - Public Domain
Hensel, Kurt, 1861-1941
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Secker, Thomas, 1693-1768
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Thatcher, Samuel, 1776-1872
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Schönborn, Johann Philipp von, 1605-1673
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Reed, Andrew, 1787-1862
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U.S. Army Signal Corps - Public Domain
Campbell, Levin Hicks, 1886-1976
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Gregory I, Pope, approximately 540-604
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Janssen, Werner, 1899-1990
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Borges, Jacobo, 1931-....
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Clerc, Laurent, 1785-1869
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Marriott, J. Willard (John Willard), 1900-1985
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Graf, Friedrich Hartmann, 1727-1795
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Hankar, Paul, 1859-1901