Kennedy curse

The Kennedy curse refers to a series of premature deaths, accidents, and other calamities involving members of the American Kennedy family. The alleged curse has primarily struck the children and descendants of businessman Joseph P. Kennedy Sr., but it has also affected family friends, associates, and other relatives. Political assassinations and plane crashes have been the most common manifestations of the "curse". Following the Chappaquiddick incident in 1969, Ted Kennedy is quoted saying he questioned if “some awful curse did actually hang over all the Kennedys.” 
Chronology.
Events that have been cited as evidence of a curse include:
References.
Notes
Bibliography