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unknown - Public Domain
Anonymous -
Detroit Public Library - Public Domain
Public Domain
Michiel Hendryckx - CC BY-SA 3.0
Jim Linwood - CC BY 2.0
Thiele41 - CC BY-SA 3.0
Gonnord (dessin)/R. Mathis (scan) - Public Domain
USA - Public Domain
Street & Smith New York - Public Domain
original uploader - Public Domain
Freeman & Co. - Public Domain
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Booth, Edwina, 1904-1991
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unknown - Public Domain
Semenov, N. N. (Nikolaĭ Nikolaevich), 1896-1986
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Anonymous -
Gateson, Marjorie, 1891-1977
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Detroit Public Library - Public Domain
Porter, Augustus Seymour, 1798-1872
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Everdingen, Caesar van, 1616 or 1617-1678
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Oborin, Lev, 1907-1974
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Russell, Leon, 1942-2016
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Scovell, George, 1774-1861
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unknown - Public Domain
Reighard, Jacob, 1861-1942
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Public Domain
Walther, Johannes, 1860-1937
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Michiel Hendryckx - CC BY-SA 3.0
Dormael, Jaco van, 1957-
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Jim Linwood - CC BY 2.0
Hodge (Cat)
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Thiele41 - CC BY-SA 3.0
Kernighan, Brian W.
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Helburn, Theresa, 1887-1959
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Bradford, Joseph, -1808
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Gonnord (dessin)/R. Mathis (scan) - Public Domain
Praet, Joseph van, 1754-1837
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USA - Public Domain
Duval, Isaac Harding, 1824-1902
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Irwin, Bernard John Dowling, 1830-1917
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Lisboa, António Francisco, 1730-1814
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Manzano, Sonia
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Reinach, Joseph, 1856-1921
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Cottin, Madame (Sophie), 1770-1807
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Gruterus, Janus, 1560-1627
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Blake, Joaquín, 1759-1827
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MacCracken, Henry Mitchell, 1840-1918
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Clark, Abraham, 1726-1794
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Street & Smith New York - Public Domain
Lee, Dixie, 1911-1952
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original uploader - Public Domain
Lindenthal, Gustav, 1850-1935
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Wilton, Thomas Egerton, Earl of, 1749-1814
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Freeman & Co. - Public Domain
Beauchamp, William Lygon, Earl, 1872-1938