Who was the first Marine to reach the rank of Sergeant Major?

The first Marine to reach the rank of Sergeant Major was Sergeant Major Archibald Sommers. This rank was established in the early 20th century as the Marine Corps began to formalize its senior enlisted leadership structure. Sommers played a significant role in shaping the expectations and responsibilities of the position, serving as a liaison between the enlisted personnel and the officers. His appointment marked a pivotal moment in the evolution of the enlisted ranks within the Marine Corps, allowing for a more structured hierarchy and improved representation of enlisted concerns at higher command levels. This context not only highlights the importance of the Sergeant Major role but also underscores Sommers' contributions to the Marine Corps' development.