John McGovern was the Secretary of the Navy in the 1980s but he was not an admiral
John McCain's father, John S. McCain Sr., held the rank of Admiral in the U.S. Navy.
The second admiral of the United States Navy works as the vice chairman for the Navy. The admiral is the highest pay rank of the Navy.
John Paul Jones is considered to be the "Father of the American Navy." Rear Admiral Alfred Thayer Mahan is probably the "Father of Modern Navies." Admiral Hyman G. Rickover is the "Father of the Nuclear Navy."
A regular US Navy Admiral, who fought for the Union.
The highest rank in the US Navy is O-10 Admiral (4 stars). EXCEPT during wartime, when the rank of Fleet Admiral (5 stars) is attainable. A Captain in the US Navy is an O-6. Commodore is not used by the US Navy,
He was an Admiral of the US Navy.
A Vice Admiral outranks a Rear Admiral. An Admiral is the highest peace time rank. Fleet Admiral is the highest during war.
David Dixon Porter
Hitler
Admiral John Tovey was the Admiral of the Fleet in the Atlantic during World War 2. He served in the Royal Navy. He retired after the war ended. Admiral Ernest J. King was assigned Fleet Commander of the Fleet for the United States once the US entered the war. They did not have one Admiral to control the fleets of the Allies as they did for the land forces.
Admiral George Dewey Admiral David D(ixon) Porter and Admiral David Farragut
A one star Admiral is actually called a Commodore. During peace time there are no commodores. The Navy goes from Captain to Rear Admiral with two stars.