Complex sentence: Isabel Rockefeller Lincoln (23 June 1902, in Ardsley-on-the-Hudson, New York--23 March 1980), her father, Percy Avery Rockefeller, was one of the richest financiers and industrialists of his time.
Split into simpler sentences: Isabel Rockefeller Lincoln was born in Ardsley-on-the-Hudson, New York on 23 June 1902. Her father, Percy Avery Rockefeller, was one of the richest financiers and industrialists of his time.