Stephen V. Harkness
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Stephen Vanderburgh Harkness (1818–1888) was an American harnessmaker from Cleveland, Ohio, who invested as a silent partner with oil titan, John D. Rockefeller, Sr., in the founding of Standard Oil.
After his death, his wife, Anna M. Harkness, established the Commonwealth Fund which is a foundation dedicated to the improvement of healthcare.
His son, Edward Harkness, was also a noted philanthropist.