Which rank did Archibald Henderson hold during his service?

Archibald Henderson held the rank of Colonel during his service in the United States Marine Corps. He is recognized as one of the significant figures in Marine Corps history, having served as the 5th Commandant of the Marine Corps from 1820 to 1859. His tenure was marked by notable developments in the Corps, including professionalization, expanded responsibilities, and the establishment of a more structured command system. Henderson's leadership and reforms contributed significantly to the growth of the Marine Corps as a vital military force, which is why his rank of Colonel is historically important.

Understanding this context helps to appreciate the contributions he made during his time in the Marine Corps, influencing how the organization evolved and functioned during a pivotal period in American military history. The other ranks listed do not accurately reflect his historical position, which is essential for grasping the significance of his role.