6. Barbara Newhall Follett
In the Jazz Age, Barbara Newhall Follett was a bit of a writing prodigy. At age 13, she published a critically acclaimed novel. Everybody agreed that she would be the next great American writer and hadn’t been for her father. After 10 years, Follett had an argument with her husband in 1939, left her house, and just vanished. He didn’t look very hard for her, and until 1966, the police and press weren’t even notified.
7. Sean Flynn
Sean Flynn lived in the shadow of his golden-age Hollywood father for years. He got his big break with the Vietnam War. He signed up as a photojournalist and was sent back to Vietnam, sending consistently chilling war photos that helped spur the anti-war movement. However, it all ended on April 6, 1970. He and journalist Dana Stone went to a Viet Cong checkpoint to photograph and never heard from again.