With the start of 2000s, Jefferson was found dating Kate Moss. Kate Moss is an English model and an actress. As a loving couple, they welcomed their only child in 2002 and it was a baby girl. Though they expressed their desire to get married soon, they broke up after few years.
After completing his education from Pangbourne College, Jefferson joined London College of Printing. At his late teens, he became the founding member of the Dazed & Confused with his friend Rankin. With the start of 2000s, he and his friend Rankin launched Another Magazine, Dazed Digital and Another Man. He is also a great writer and has written several books in his life and some of them are Kate Moss and Another Magazine. He is believed to be earning lucrative amount of salary.