When my husband died, I asked the oncologist about the chances of any of the children developing PC. His reply was that since my husband was the first and only person in his family to get the disease, it is probably not familial. I still caution my son and stepsons not to ignore any digestive/abdominal symptoms they experience when they get older.
I know that the family of President Jimmy Carter experienced the familial form of PC. Jimmy's the only one of his immediate family to dodge the bullet. Both parents, two sisters and his brother all died of pancreatic cancer. Jimmy, by the way, is the only one who never smoked.