From Halopedia, the Halo wiki
His son, James Gregory Cutter, was born to him and an unidentified woman on June 12, 2479. After James had left school, his father pushed him to get his degree. He was furious when his son became an ensign at the UN Colony Logistics Office and even more furious when he joined flight school, leaving the words "Nothing more than a trucker".
After August 8, 2525, when his son became captain of the UNSC Spirit of Fire, he toured the ship with him and gave him redeeming words by saying "I guess you knew something, after all. Your mom would be proud".