Original: Thelma Catherine "Pat" Ryan Nixon (March 16, 1912 – June 22, 1993) was the wife of Richard Nixon, 37th President of the United States, and was First Lady of the United States from 1969 to 1974.
Simplified: Patricia Ryan Nixon (March 16, 1912 - June 22, 1993) was the wife of Richard Nixon, the 37th President of the United States.