Question: Stephen V. Harkness was a businessman who was a silent partner in Standard Oil, helping which business magnate?
Sentence (from "Stephen V. Harkness"): Stephen Vanderburgh Harkness (November 18, 1818 – March 6, 1888) was an American businessman from Cleveland, Ohio, who invested as a silent partner with oil titan John D. Rockefeller, Sr. in the founding of Standard Oil.
Relevant evidence: Yes