Which Commandant installed the office of Sergeant Major of the Marine Corps?

The office of Sergeant Major of the Marine Corps was established by General Pate in 1957. He recognized the need for a senior enlisted advisor who could provide guidance and insight into the enlisted ranks, thereby serving as a liaison between the enlisted personnel and the command structure. The creation of this position was pivotal in ensuring that the voices and concerns of enlisted Marines were represented at higher levels of command, which ultimately helped enhance the effectiveness of the Marine Corps as a whole.

General Pate's leadership and vision for the enlisted force led to the formal recognition of the important role that senior enlisted Marines play in the overall functioning of the Corps. This decision has had a lasting impact, solidifying the necessity of senior enlisted leadership within the Marine Corps structure.