Who was the first Sergeant Major of the Marine Corps?

The first Sergeant Major of the Marine Corps was indeed SgtMaj William Bestwick. He assumed this significant role on July 1, 1957. The establishment of the position was intended to create a senior enlisted advisor who would provide input on enlisted matters directly to the Commandant of the Marine Corps. Bestwick's appointment was a key development in the evolution of the Marine Corps' leadership structure, emphasizing the importance of the enlisted perspective at the highest levels of command. His legacy set the foundation for future Sergeants Major of the Marine Corps, who continue to influence Marine Corps policy and culture today.