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Southworth & Hawes - Public Domain
Verl. Herm. Leiser, Berlin-Wilm. / Phot. Gerlach Nr. 300 - Public Domain
Lautaropomponio - CC BY-SA 4.0
Falcon117 - CC BY-SA 3.0
Otto Becker & Maass, Berlin - Public Domain
Public Domain
Harris & Ewing - Public Domain
Ron Kroon / Anefo -
Public Broadcasting Service - Public Domain
CBS Television - Public Domain
Johnston, Frances Benjamin, 1864-1952, photographer - Public Domain
Hoppyh - CC BY-SA 4.0
Mathew Brady Levin Corot Handy - Public Domain
Walter Shirlaw - Public Domain
Kreidezeichnung von J.Schmeller, Goethe-Nationalmuseum Weimar (1932) -
as cited RVD (although unlikely because it did not exist at the time) - Public Domain
Library of Congress? - Public Domain
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Southworth & Hawes - Public Domain
Tappan, Caroline Sturgis, 1819-1888
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Verl. Herm. Leiser, Berlin-Wilm. / Phot. Gerlach Nr. 300 - Public Domain
Andra, Fern, 1893-1974
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Kimball, H. I. (Hannibal Ingalls), 1832-1895
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Lautaropomponio - CC BY-SA 4.0
Irigoyen, Hipólito, 1852-1933
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Rawlinson, Richard, 1690-1755
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Falcon117 - CC BY-SA 3.0
Lykken, David Thoreson
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Otto Becker & Maass, Berlin - Public Domain
Bargiel, Woldemar, 1828-1897
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Public Domain
Sherman, Thomas W. (Thomas West), 1813-1879
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Harris & Ewing - Public Domain
Claxton, P. P. (Philander Priestley), 1862-1957
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Ron Kroon / Anefo -
Klos, Elmar
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National Museum of American History (U.S.)
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Public Broadcasting Service - Public Domain
Hunnicutt, Gayle
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Perlasca, Giorgio, 1910-1992
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Boughton, Alice, 1865-1943
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Bayly, Thomas, -1657?
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Castro, Roland, 1940-....
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Cadwalader, John, 1742-1786
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Hook, James Clarke, 1819-1907
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CBS Television - Public Domain
Hunt, Marsha, 1917-....
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Johnston, Frances Benjamin, 1864-1952, photographer - Public Domain
Wherry, Edgar Theodore, 1885-
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Hoppyh - CC BY-SA 4.0
Godwin, Mills E. (Mills Edwin), 1914-1999
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Mathew Brady Levin Corot Handy - Public Domain
Abbott, Joseph C. (Joseph Carter), 1825-1881
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Walter Shirlaw - Public Domain
Shirlaw, Walter, 1838-1909
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Kreidezeichnung von J.Schmeller, Goethe-Nationalmuseum Weimar (1932) -
Müller, Friedrich von, 1779-1849
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as cited RVD (although unlikely because it did not exist at the time) - Public Domain
Van Raalte, Albertus C. (Albertus Christiaan), 1811-1876
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Saliceti, Antoine-Christophe, 1757-1809
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Library of Congress? - Public Domain
Burrows, Julius C. (Julius Caesar), 1837-1915
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McKay, Hugh Victor, 1865-1926
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Ireland, John, 1914-1992
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Banfield, Edward C.