Sgt. Scott A. Jewel, 32nd Color Sergeant of the Marine Corps, instructs Young Marines in ceremonial colors drill at Marine Barracks Washington, July 18. The Manassas Young Marines toured Marine Barracks Washington and received personal instruction from members of the Marine Corps Color Guard. - Sgt. Scott A. Jewel, 32nd Color Sergeant of the Marine Corps, instructs Young Marines in ceremonial colors drill at Marine Barracks Washington, July 18. The Manassas Young Marines toured Marine Barracks Washington and received personal instruction from members of the Marine Corps Color Guard.