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BPL - Public Domain
Photo Studio Desautels - Public Domain
Richard F. Lyon (Dicklyon, husband of his niece Peggy Asprey) - CC BY 3.0
unknown - Public Domain
Antarctic96 - CC BY-SA 3.0
Gage Skidmore - CC BY-SA 3.0
Library of Congress - Public Domain
David Shankbone -
Hoppyh - CC BY-SA 4.0
Andrew Dermont - CC BY 3.0
Blaues Sofa - CC BY 2.0
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Day, William R. (William Rufus), 1849-1923
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BPL - Public Domain
Parker, Theodore, 1810-1860.
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Photo Studio Desautels - Public Domain
Daunais, Lionel, 1901-1982
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Allen, Charles H. (Charles Herbert), 1848-1934
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Richard F. Lyon (Dicklyon, husband of his niece Peggy Asprey) - CC BY 3.0
Asprey, Robert B.
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Schmidt, Helmut, 1918 December 23-
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unknown - Public Domain
Terrot, Charles Hughes, 1790-1872.
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Herzfelde, Wieland.
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Lassen, Eduard
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Antarctic96 - CC BY-SA 3.0
Guerin, John
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Gage Skidmore - CC BY-SA 3.0
Chavez, Linda
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Holford, Sir George
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Isham, Charles, 1819-1903
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Library of Congress - Public Domain
Buck, Clayton Douglass, 1890-1965.
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David Shankbone -
Masterson, Mary Stuart, 1966-...
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Lautmann, Rüdiger (1935- ).
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unknown - Public Domain
Bortkiewicz, Sergei, 1877-1952
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Pavlović Barilli, Milena 1909-1945
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Renan, Ernest, 1823-1892
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unknown - Public Domain
Jouffroy, Jean, approximately 1412-1473
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Plançon, Pol (1851-1914).
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unknown - Public Domain
Rathbun, Richard, 1852-1918
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Garrison, Fielding H. (Fielding Hudson), 1870-1935
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Hoppyh - CC BY-SA 4.0
Godwin, Mills E. (Mills Edwin), 1914-1999
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unknown - Public Domain
Javal, Émile, 1839-1907
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Andrew Dermont - CC BY 3.0
Wolff, Michael, 1953-....
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Kluszewski, Ted, 1924-1988
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Calcraft, John, 1765-1831
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Blaues Sofa - CC BY 2.0
John, Gottfried, 1942-....
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Blei, Franz, 1871-1942