Jeff was born in 1970 and was the second son of Bill and Helen Freeman. He was a cheeky boy who enjoyed tormenting his older brother David causing a few heated arguments to which their parents were always caught in the middle.
At the age of 8, Jeff was the average cheeky annoying boy who enjoyed teasing David, but after his brother's mysterious disappearance for 8 years, Jeff showed how much he really cared about David by helping in his parents' search to find him, feeling bad that the last time they met was when he scared him by jumping out of a tree when his brother came to look for him.
When he meets David again, he is just as surprised to see him as he is by him and helps him understand where he is and what has changed. He goes to great lengths to help his brother out including lighting a fireworks display so David can find his way home.
When David returns to 1978, he is amazed when David forgives him for his teasing and eventually warms up to him.