The copycat effect even affects celebrity families. Learned behavior and the modeling power of the copycat effect may be a stronger link than even biological predeterminism.
Ernest Hemingway:
The so-called “Hemingway Curse” is one such example. Pulitzer Prize and Nobel Prize winner Ernest Hemingway wrote literary masterpieces. His father and two siblings died by suicide, and the rumors of a Hemingway Curse has become an urban legend.
One allegorical story is told of Hemingway’s mother baking a cake for him on his 21st birthday, and putting the gun his father used to kill himself in the middle of the cake. [link]