Who were these leaders? How did they achieve their position as the Sergeant Major of the Marine Corps - the enlisted man's general? What can we learn from their careers about how the modern Marine Corps works and selects those who guide it? Marine Captain John Chapin provides the answers to these and other questions in Uncommon Men: The Sergeants Major of the Marine Corps. This book is a study of the careers, lives, and working environment of the first eleven men to hold the senior enlisted billet in the United States Marine Corps.