Admiral Hyman G. Rickover played a great part in the development of nuclear power in the US Navy. Just to prove to you how ground breaking their work had been, imagine the impact of the technology they had created, which allowed a nuclear reactor (that usually gets housed in a large building) to be fitted inside the confines of an undersea ship.
During his tenure, He also single handedly picked all the commanding officers of each nuclear powered submarine. The interviews with potential submarine captains were said to be nightmarish. He is also one of two people who has a nuclear submarine named after them.
Other than the man, his bust at the US Naval Academy at Annapolis also has its fair share of fame. Midshipmen who are taking their exams in Nuclear related subjects are known to rub the nose of the Admiral for good luck.
To you Sir, I tip my hat…[source]