Mary Jo Kopechne
Mary Jo Kopechne was an American teacher, secretary, and political campaign specialist who died in a car accident at Chappaquiddick Island on July 18, 1969, while a passenger in a car being driven by longtime U.S. Senator Ted Kennedy.
Kopechne was born in WilkesBarre, Pennsylvania. Her father, Joseph Kopechne, was an insurance salesman, and her mother, Gwen , was a homemaker. Kopechne was of part Polish heritage.
Source: Wikipedia