Simplify the following text for a Grade 10 native English-speaking person.
Original: Richard Milhous Nixon ( January 9 , 1913 â `` April 22 , 1994 ) was the 37th President of the United States ( 1969 â `` 74 ) , having formerly been the 36th Vice President of the United States ( 1953 â `` 61 ) .
Simplified: Richard Milhous Nixon ( January 9 , 1913 â `` April 22 , 1994 ) was the 37th President of the United States and the only president to resign from office .