John Rockefeller Prentice 1941, Prentice married Abbie Cantrill. The couple had one daughter, Chicago philanthropist, Abra Prentice Wilkin. John Rockefeller Prentice John Rockefeller Prentice (December 17, 1902 – June 13, 1972) was born to Chicago lawyer Ezra Parmalee Prentice and Alta Rockefeller Prentice in New York. Prentice's maternal grandfather is the Standard Oil tycoon, John D. Rockefeller (1839–1937). While attending Yale University, Prentice became a member of the Skull and Bones society and was elected to Phi Beta Kappa. He graduated in 1928. During his years at Yale, Prentice had accumulated debts and consequently was cut off from his parents. He worked in
Founder's Hall (Rockefeller University) business, from which he retired in 1897. His efforts at philanthropy were formally guided from 1891 by Frederick T. Gates, a Baptist minister who had previously (1889) recommended to Rockefeller that he establish the University of Chicago. Much of Rockefeller's early philanthropy was on a comparatively small scale, and it was soon clear that larger-scale endeavors needed to be organized to properly guide his charitable giving. Gates suggested to Rockefeller that he establish a medical research institute that would be on a par with major European institutions of the period. In June 1902, Rockefeller made a commitment of $1 million