Image from Wikimedia Commons
Photographer unidentified - Public Domain
Bain News Service - Public Domain
Alfred Chopin (1846–1902) - Public Domain
Edwin L. Norris, author. Frank A. Munsey Company (New York, NY), publisher. - Public Domain
Ch. Faber - Public Domain
unknown - Public Domain
Jeffdelonge - CC BY-SA 3.0
Credit: National Oceanic and Atmospheric Administration/Department of Commerce [http://www.photolib.noaa.gov/aboutimages.html] - Public Domain
Les Kaner - CC BY 3.0
Public Domain
US Government Printing Office - Public Domain
Bmf0217 - CC BY-SA 3.0
Albert Witzel - Public Domain
Image from Wikimedia Commons
Photographer unidentified - Public Domain
Springer, Rebecca Ruter, 1832-1904
Image from Wikimedia Commons
Bain News Service - Public Domain
Ashurst, Henry Fountain, 1874-1962
Image from Wikimedia Commons
Czartoryski, Adam Jerzy, książę, 1770-1861
Image from Wikimedia Commons
Alfred Chopin (1846–1902) - Public Domain
Johns, Joseph Bolitho, approximately 1826-1900
Image from Wikimedia Commons
Edwin L. Norris, author. Frank A. Munsey Company (New York, NY), publisher. - Public Domain
Norris, Edwin L. (Edwin Lee), 1865-1924
Image from Wikimedia Commons
Ch. Faber - Public Domain
Singelée, Jean-Baptiste, 1812-1875
Image from Wikimedia Commons
Penhallow, D. P. (David Pearce), 1854-1910
Image from Wikimedia Commons
Leese, Jacob P. (Jacob Primer), 1809-1892
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Sansovino, Iacopo, 1486-1570
Image from Wikimedia Commons
Ingraham, Prentiss, 1843-1904
Image from Wikimedia Commons
Pearce, Alexander, approximately 1790-1824
Image from Wikimedia Commons
unknown - Public Domain
Childs, John Lewis, 1856-1921
Image from Wikimedia Commons
Jeffdelonge - CC BY-SA 3.0
Abdykalykov, Aktan, 1957-
Image from Wikimedia Commons
Credit: National Oceanic and Atmospheric Administration/Department of Commerce [http://www.photolib.noaa.gov/aboutimages.html] - Public Domain
Strauss, Lewis L.
Image from Wikimedia Commons
Les Kaner - CC BY 3.0
Bier, Susanne, 1960-....
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Public Domain
Yates, Joseph Christopher, 1768-1837
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Harvey, Paul, 1918-2009
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Joy, Leatrice, 1894-1985
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Peckham, Rufus W., 1809-1873
Image from Wikimedia Commons
Public Domain
Mattocks, John, 1777-1847
Image from Wikimedia Commons
US Government Printing Office - Public Domain
Schmidhauser, John R. (John Richard), 1922-
Image from Wikimedia Commons
Bmf0217 - CC BY-SA 3.0
Ferrari, Luc
Image from Wikimedia Commons
Thomas, J. Parnell (John Parnell), 1895-1970
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unknown - Public Domain
Stuart, David, 1753-1814
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Taylor, F. Jay (Foster Jay), 1923-2011
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unknown - Public Domain
Ward, James Harmon, 1806-1861
Image from Wikimedia Commons
Mädler, Johann Heinrich, 1794-1874
Image from Wikimedia Commons
Public Domain
Castlemon, Harry, 1842-1915
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unknown - Public Domain
Veitch, James Herbert., 1868-1907
Image from Wikimedia Commons
Albert Witzel - Public Domain
Teare, Ethel, 1894-1959