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unknown - Public Domain
Sbrousseau - CC BY-SA 3.0
Escarlati - CC BY-SA 3.0
:en:Angus McBean - Public Domain
. - Public Domain
Louis-Marie Normand (1789-1874) - Public Domain
Johann Friedlein - Public Domain
Hazen S. Pingree - Public Domain
Sarony - Public Domain
Joachim Feller (?) - Public Domain
US Government Printing Office - Public Domain
B. Erdoedy -
Unknown military photographer of the Signal Corps - Public Domain
CSvBibra - CC BY-SA 3.0
US Government Printing Office (Washington, DC), publisher - Public Domain
Ch. Fenderich - Public Domain
Photographer: Garbo, Chicago. - Public Domain
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unknown - Public Domain
Simms, Ginny
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Sbrousseau - CC BY-SA 3.0
Shaw, Susan, 1946-
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Donahue, Peter, 1822-1885
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unknown - Public Domain
Tower, Z. B. (Zealous Bates), 1819-1900
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Ettinger, Bracha, 1948-
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Mitchill, Samuel L. (Samuel Latham), 1764-1831
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Escarlati - CC BY-SA 3.0
Serrano, Pablo, 1908-1985
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Morris, Cadwalader, 1741-1795
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:en:Angus McBean - Public Domain
Helpmann, Robert, Sir, 1909-1986
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. - Public Domain
Bowker, R. R. (Richard Rogers), 1848-1933
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Louis-Marie Normand (1789-1874) - Public Domain
Papety, Dominique, 1815-1849
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Johann Friedlein - Public Domain
Hinckelmann, Abraham, 1652-1695
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Hazen S. Pingree - Public Domain
Pingree, Hazen S., 1840-1901
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Sarony - Public Domain
Spofford, Harriet Elizabeth Prescott, 1835-1921
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Rowe, Brad, 1970-....
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Kingsley, Charles, 1819-1875
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Joachim Feller (?) - Public Domain
Weise, Christian, 1642-1708
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Havard, Michel
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US Government Printing Office - Public Domain
McCloskey, Paul N., 1927-
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B. Erdoedy -
Smith, TV, 1956-
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Natwick, Mildred, 1905-1994
Image from Wikimedia Commons
Unknown military photographer of the Signal Corps - Public Domain
Robertson, Walter M., 1888-1954
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CSvBibra - CC BY-SA 3.0
Amat, Thaddeus, 1811-1878
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US Government Printing Office (Washington, DC), publisher - Public Domain
Gregory, William Voris, 1877-1936
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Ch. Fenderich - Public Domain
Barnard, Daniel D. (Daniel Dewey), 1797-1861
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Scott, George C., 1927-1999
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Ledoux, Claude-Nicolas, 1736-1806
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Gurney, Joseph-John, 1788-1847
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Shaw, Ryan, 1980-
Image from Wikimedia Commons
Photographer: Garbo, Chicago. - Public Domain
Silvers, Phil, 1911-1985