What award did the sergeant which the M247 is named after win?
M247 Sergeant York The M247 Sergeant York DIVAD (Division Air Defense) was a self-propelled anti-aircraft gun (SPAAG), developed by Ford Aerospace in the late 1970s. Based on the M48 Patton tank, it replaced the Patton's turret with a new one that featured twin radar-directed Bofors 40 mm rapid-fire guns. The vehicle was named after Sergeant Alvin York, a famous World War I hero.
Llewellyn Chilson Llewellyn Morris Chilson (April 1, 1920 – October 2, 1981) was an American and United States Army master sergeant. He was one of the most decorated U.S. Army infantry soldiers in World War II. He received twelve individual decorations for combat from the Army including three Distinguished Service Crosses, three Silver Stars, and three Purple Hearts. The President of the United States personally decorated Chilson with seven individual decorations for combat after the war.