James Doolittle is most famous for leading the 1942 air raid on Tokyo. However, between the world wars, he earned a doctorate in aeronautical engineering from MIT, became the manager of Shell Oil's aviation division, and befriended Robert Goddard. After World War II, he returned to Shell Oil as an executive, and was the last chairman of NACA, the predecessor agency to NASA. He turned down an offer to serve as NASA's first administrator.
Considering his leadership positions in both Shell Oil and NACA, did Doolittle have any involvement in the invention of RP-1 rocket fuel?