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unknown - Public Domain
not stated - Public Domain
Public Domain
Ching Wah Chin - CC BY-SA 3.0
Lemurblanc - CC BY-SA 4.0
Project Gutenberg - Public Domain
Skew-t - CC BY-SA 3.0
original uploader - CC BY-SA 2.5
CBS Television - Public Domain
Unknown - no illustration citation in the magazine - Public Domain
Manchester (N.H.) Library - CC BY-SA 2.0
Generalitat de Catalunya, Departament de la Presidència -
U.S. Air Force photo/Staff Sgt. Evelyn Chavez - Public Domain
JH-Foundation - CC BY-SA 3.0
LynnGilbert5 - CC BY-SA 4.0
Edmond Lebeaud - Public Domain
Harold Goff - Public Domain
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unknown - Public Domain
Burgon, John William, 1813-1888
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Gracie, Archibald, 1858-1912
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Beam, Jacob D., 1908-....
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Fitch, Thomas, 1838-1923
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not stated - Public Domain
Graham, Harry, 1874-1936
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Huéscar, Fernando de Silva Alvarez de Toledo y Haro, duque de, 1714-1776
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Shaw, Anna Howard, 1847-1919
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Public Domain
Smith, Neal Edward, 1920-
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Ching Wah Chin - CC BY-SA 3.0
Nofi, Albert A.
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Lemurblanc - CC BY-SA 4.0
Huang, Yong ping 1954-....
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Project Gutenberg - Public Domain
Burrows, Lorenzo, 1805-1885
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Hardy, Janet W.
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Skew-t - CC BY-SA 3.0
Coghill, John B.
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Witherspoon, John, 1723-1794
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Fuchs, Leonhart, 1501-1566
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original uploader - CC BY-SA 2.5
Lamb, Matt, 1932-2012
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CBS Television - Public Domain
Neville, John, 1925-2011
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Unknown - no illustration citation in the magazine - Public Domain
Southard, Milton I. (Milton Isaiah), 1836-1905
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Manchester (N.H.) Library - CC BY-SA 2.0
Parker, Robert B., 1932-2010
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Generalitat de Catalunya, Departament de la Presidència -
Sert, José Luis (1902-1983).
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U.S. Air Force photo/Staff Sgt. Evelyn Chavez - Public Domain
Kounalakis, Markos
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Poulson, Zachariah, 1761-1844
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JH-Foundation - CC BY-SA 3.0
Hübner, Julius, 1806-1882
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Boadicea, Queen, -62
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LynnGilbert5 - CC BY-SA 4.0
Vreeland, Diana
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Andrade, Mário de, 1893-1945
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Edmond Lebeaud - Public Domain
Vértiz y Salcedo, Juan José de 1719-1799
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Harold Goff - Public Domain
Fairbanks, Avard T. (Avard Tennyson), 1897-1987
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Blest, Gana Alberto 1830-1920
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Loomis, Charles Battell, 1861-1911