Jon is a young man with a single purpose. He wants to have fun in life. He uses women for pleasure, but he's at least honest and admits this before becoming involved. He uses recreational drugs, but stays away from the hard stuff. He's willing to do an honest day's work when he has to and takes on odd jobs.
Jon enjoyed his carefree lifestyle until he met Tamara. He was honest with her and told her exactly what he wanted from her. She agreed and all was well. Much to his surprise, he found that he couldn't get her out of his mind. When she announced that she was leaving town for a new job, Jon asked her to take him with her. He was willing to give up his lifestyle if he could spend his days with her. Tamara accepted.
Jon is a good man despite his use of drugs. He loves Tamara, respects her, and wants to make her his wife. Although they are not married, they agreed to share Jon's last name.
Jon Young has not appeared nor is he mentioned in any published game. He was to appear only in Van Buren, the canceled Fallout 3 by Black Isle Studios. It is not certain if he will appear in any future Fallout game