Nevins, Allan, 1890-1971
John D. Rockefeller : the heroic age of American enterprise
Charles Scribner,s Sons, 1940
 Buku Teks SO
Manchester, William
A Rockefeller family portrait from John D. to Nelson
Little, Brown, 1959
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Talon, Henri A.
John Bunyan
London Longmans 1956
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Mottram, R.H.
John Galsworthy
London Longmans 1953
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Chadwick, H. Munro
The heroic age
Cambridge University Press, 1926
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