In 1684 William Macon (Gideon's father) died, and on November 14, 1684 Gideon Macon left "a large sum" of money to the church.
Gideon Macon quickly became prominent in the affairs of New Kent County, and he was elected to the General Assembly and served in the House of Burgesses in 1693 and 1696 to 1702.