Staff Group was a type of unit of the United States Marine Corps Reserve. These units trained Marine officers to serve on a division or general staff. They existed from about 1955 to 1980.
1st Staff Group (Ground), Navy and Marine Corps Reserve Training Center, Brooklyn, New York3rd Staff Group4th Staff Group, Philadelphia, Pennsylvania5th Staff Group, Washington, DC6th Staff Group, Atlanta, Georgia7th Staff Group, Richmond, Virginia / St. Louis, Missouri8th Staff Group, Houston, Texas9th Staff Group, Forest Park, Illinois13th Staff Group, Detroit, Michigan16th Staff Group (Ground), San Diego, CaliforniaStaff Group Wikipedia (Text) CC BY-SA