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unknown photographer - Public Domain
Robert Bruce Livingston - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Jules Lenepveu - Public Domain
Pragdon - CC BY-SA 4.0
unknown - Public Domain
original uploader - Public Domain
Fox Films - Public Domain
Ricardo André Frantz (Tetraktys) -
The copyright lied with the Historische Museum Frankfurt (Historical Museum of Frankfurt) which kindly released the file under a cc-by-sa during GLAM on Tour Frankfurt 2018. - CC BY-SA 4.0
Syrian Protestant college - Public Domain
Public Domain
Alexander Kanoldt - Public Domain
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Graham, Heather, 1970-....
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unknown photographer - Public Domain
Canniff, William, 1830-1910
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Murray, William Vans, 1760-1803
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Robert Bruce Livingston - Public Domain
Gonzalez, Matt, 1965-
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Boggs, Charles Stuart, 1811-1888
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Worde, Wynkyn de, -1534?
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Ziporyn, Evan
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Mathew Brady Levin Corot Handy - Public Domain
House, John Ford, 1827-1904
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Gilbert, Ashurst Turner, 1786-1870
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Jules Lenepveu - Public Domain
Geffroy, A. (Auguste), 1820-1895
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Ragsdale, William
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Pragdon - CC BY-SA 4.0
Breien, Anja
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unknown - Public Domain
Cook, Frederick Albert, 1865-1940
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original uploader - Public Domain
Pillsbury, J. S. (John Sargent), 1827-1901
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Poindexter, Hildrus Augustus, 1901-
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unknown - Public Domain
Ducommun, Élie, 1833-1906
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Snider, Clifton
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Glück, Gustav, 1871-1952
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Fox Films - Public Domain
Ray, Albert
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Schlagintweit-Sakünlünski, Hermann von, 1826-1882
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Alleyn, Edward, 1566-1626
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unknown - Public Domain
Ritchie, Thomas, 1778-1854
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Ricardo André Frantz (Tetraktys) -
Ferrata, Ercole, 1610-1686
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Jameson, L. S. (Leander Starr), 1853-1917
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The copyright lied with the Historische Museum Frankfurt (Historical Museum of Frankfurt) which kindly released the file under a cc-by-sa during GLAM on Tour Frankfurt 2018. - CC BY-SA 4.0
Sender, Toni, 1888-1964
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Syrian Protestant college - Public Domain
Bliss, Daniel, 1823-1916
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Public Domain
Chickering, Jonas, 1797-1853
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Alexander Kanoldt - Public Domain
Kanoldt, Alexander, 1881-1939
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unknown photographer - Public Domain
LeBaron, William, 1883-1958
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unknown - Public Domain
Seavey, Daniel, 1865-1949