Who was the only Marine relieved of the office as Commandant as a result of a court-martial?

Lieutenant Colonel Anthony Gale is recognized as the only Marine who was relieved of his position as Commandant due to a court-martial. His dismissal stemmed from actions and decisions that led to significant controversy, resulting in the court-martial process. This context highlights the serious nature of his offenses which were deemed incompatible with the responsibilities of such a high-ranking position.

In contrast, the other individuals listed, such as General Alfred M. Gray, General Carl E. Mundy Jr., and General Thomas Holcomb, served as Commandants without facing such disciplinary actions. These leaders are known for their contributions and leadership within the Marine Corps during their respective tenures and did not encounter legal proceedings that would result in their removal from office. This distinction underscores the rarity of such occurrences within the Marine Corps ranks.