The definitive Wikipedia entry for William Williams Keen. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet.
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William Williams Keen (1837-1932) JMC Class of 1862 As a member of the Jefferson Medical College faculty from 1866 to 1907, W.W. Keen's stature in the field of surgery was nearly as exalted as that of Samuel.
jeffline.jefferson.edu/SML/archives/exhibits/notable_alum...