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Luigi Serra - Public Domain
Goupil & Cie. Montmartre Paris - Public Domain
Walter Robertson - Public Domain
Steve Punter - CC BY 2.0
Ulysses Robert Brooks - Public Domain
Francis Bazley Lee (1869-1914) - Public Domain
w:John Kay (caricaturist) - Public Domain
Erwinnecrumb - CC BY-SA 3.0
Günter Prust - CC BY 3.0
not stated - Public Domain
unknown - Public Domain
Prolineserver -
Zeke Smith - CC BY-SA 2.0
''Motion Picture Magazine'' - Public Domain
Jeangagnon - CC BY-SA 3.0
SamuelCFTP - CC BY-SA 4.0
US Government Printing Office - Public Domain
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Luigi Serra - Public Domain
Serra, Luigi, 1846-1888
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Goupil & Cie. Montmartre Paris - Public Domain
Jalabert, Charles-François, 1819-1901
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Wanders, Marcel
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Walter Robertson - Public Domain
Stevens, Daniel, 1746-1835
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Baltz, Lewis, 1945-....
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Steve Punter - CC BY 2.0
Hamilton, Christine
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Ulysses Robert Brooks - Public Domain
Simonton, Charles H. (Charles Henry), 1829-1904
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Francis Bazley Lee (1869-1914) - Public Domain
Pennington, William S. (William Sandford), 1757-1826
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Von Zell, Harry
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Burgess, John William, 1844-1931
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w:John Kay (caricaturist) - Public Domain
Webster, Alexander, 1707-1784
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Constantine I, Emperor of Rome, -337
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Ellison, Larry, 1944-
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Erwinnecrumb - CC BY-SA 3.0
Keller, Gary, 1957-
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Günter Prust - CC BY 3.0
Shaw, Elizabeth.
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not stated - Public Domain
Lockhart, William, 1820-1892
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Brothers, Richard, 1757-1824
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unknown - Public Domain
André, Johann Anton, 1775-1842
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Spruance, Presley, 1785-1863
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Prolineserver -
Krugman, Paul R., 1953-
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Purser, Sarah, 1848-1943
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Zeke Smith - CC BY-SA 2.0
Williams, Roy, 1950-
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unknown - Public Domain
Spiridonova, Marii︠a︡ Aleksandrovna, 1884-1941
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''Motion Picture Magazine'' - Public Domain
King, Henry, 1886-1982
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Jeangagnon - CC BY-SA 3.0
Rivard, Michel
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SamuelCFTP - CC BY-SA 4.0
Hailstork, Adolphus
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unknown - Public Domain
Hahn, Carl Hugo, 1818-1895
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US Government Printing Office - Public Domain
Harris, Oren, 1903-1997
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unknown - Public Domain
Drelincourt, Charles, 1595-1669
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Hagedorn, Friedrich von 1708-1754