 Young John was educated under his father and served as a Sewer in Ordinary, a page who passes meat to the King, to Charles II.In 1635, King Charles I sent Capt.John Mason, his uncle Thomas, a surgeon general in his army, and Lion Gardiner, an engineer (and later Lord of the Manor on Gardiners Island), to Boston to construct a garrison, later known as Fort Saybrook, at the mouth of the Connecticut River.