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unknown - Public Domain
US Army photographers on behalf of the OUSCCPAC or its successor organisation, the OCCWC - Public Domain
Collection of the U.S. House of Representatives, Photography Collection - Public Domain
Beyond My Ken -
Coburn, Alvin Langdon, 1882-1966 -- Photographer - Public Domain
unidentified staff artist/Stellar Publishing - Public Domain
Stozter - CC BY-SA 3.0
Unknown - Public Domain
Peter Stevens, under commission of the United States Court of Appeals for the District of Columbia Circuit - Public Domain
Mattis - Public Domain
Gloverpark - CC BY-SA 4.0
Uncredited - Public Domain
Public Domain
Olaf Storbeck - CC BY-SA 2.0
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Haggin, James Ben Ali, 1822-1914
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Cornelius, Peter von 1783-1867
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Cotton, Henry, Sir, 1845-1915
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unknown - Public Domain
Kappelʹ, Vladimir Oskarovich, 1883-1920
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Lord, Henry W. (Henry William), 1821-1891
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Morse, Leopold, 1831-1892
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Castellane, Esprit Victor Élisabeth Boniface, comte de, 1788-1862
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Du Halde, J.-B. (Jean-Baptiste), 1674-1743
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US Army photographers on behalf of the OUSCCPAC or its successor organisation, the OCCWC - Public Domain
Krauch, Carl, 1887-1968
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Collection of the U.S. House of Representatives, Photography Collection - Public Domain
Butler, M. Caldwell (Manley Caldwell), 1925-
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Saftleven, Cornelis, 1607-1681
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Robbin, Tony.
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Beyond My Ken -
Schomburg Center for Research in Black Culture.
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Coburn, Alvin Langdon, 1882-1966 -- Photographer - Public Domain
Wadsworth, Edward, 1889-1949
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Trotter, H. D. (Henry Dundas), 1802-1859
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unidentified staff artist/Stellar Publishing - Public Domain
Williamson, Jack, 1908-2006
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Stozter - CC BY-SA 3.0
Kopelson, Kevin, 1960-....
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Unknown - Public Domain
Benigni, Umberto.
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Wellman, H. R. (Harry Richard), 1899-1997
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Peter Stevens, under commission of the United States Court of Appeals for the District of Columbia Circuit - Public Domain
Leventhal, Harold, 1915-1979
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Mattis - Public Domain
Foliot, Gilbert, -1188
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Gloverpark - CC BY-SA 4.0
Labino, Dominick, 1910-1987
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Uncredited - Public Domain
Schlesinger, Frank, 1871-1943
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Lee, T. D., 1926-
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Public Domain
Home, D. D. (Daniel Dunglas), 1833-1886
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Healy, Ted, 1896-1937
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Weidman, Charles
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Hatfield, Devil Anse, 1839-1921
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Olaf Storbeck - CC BY-SA 2.0
Solow, Robert M.
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Sarmiento de Sotomayor, García, conde de Salvatierra, y marqués de Sobroso, -1659