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DearCustomer- You can check the website from the TSA which I have included below to see if your name appears or you can contact the TSA directly however I would not takes chances of raising suspicions if none exist. If your name is XXXXX XXXXX the list then you probably are safe to fly. The only certain way to find out is to book a ticket and see if you are detained at the airport check in.
There are so many factors that go into names being included on the list that I would have no way of telling you if the incident in 1974 would have any bearing on you being included.