US History Trivia: Who was President when the last state was admitted to the Union?

Since the original founding of the United States, 37 states have been admitted to the Union (after the original 13 colonies).  It goes without saying that many Presidents have presided over the entrance of different states into the Union; so, off of Pocket Trivia: US History - Who was President when the last state was admitted to the Union?  Was it Franklin Roosevelt, Richard Nixon, Harry Truman or Dwight Eisenhower?

Eisenhower signing proclamation that makes Hawaii the 50th States (Source: Eisenhower Archives)

As the above picture clearly indicates, its Eisenhower.  Hawaii was the 50th state and admitted to the Union on August 21, 1959.  Prior to that, Hawaii had voted in June, via referendum, to join the United States as a State.  This was only after a bill had passed through Congress in March 1958, authorizing the legislation.