Colonel Theodore Stark Hemmingway was commissioned an Infantry Officer upon graduation from Officer Candidate School Class 10 on 8 May 1942. His first duty assignment was as Platoon Leader Anti-Tank Company, 27th Infantry Regiment 25th Division. | His subsequent duty assignments include: Platoon Leader Provisional Tank Company, 27th Infantry, Hawaiian Department; Platoon Leader, Provisional Tank Company, 106th Infantry, Central Pacific; Platoon Leader, Company A, 766 Tank Battalion, 4th Armored Group; Executive Officer, Company A, 766 Tank Battalion, 4th Armored Group;  Commanding Officer, Company A,  766 Tank Battalion, 4th Armored Group; Adjutant S-1, 4th Armored Group, Central Pacific; Commanding Officer, Headquarters Company, 4th Armored Group, Philippine Islands; Commanding Officer, Company E, 10th Infantry Regiment, 5th Division, Fort Jackson, South Carolina; Instructor, ROTC Summer Camp Military Police School, Fort Gordon; Instructor, ROTC Instructors Group, Atlanta Division, Atlanta, Georgia; Instructor and Personnel Officer, ROTC Summer Camp for Infantry, Fort Benning, Georgia; Commanding Officer, 7964th Hq and Hq Detachment, Base Section, La Rochelle, France; Commanding Officer, Hq Company 524th Military Police Battalion, La Rochelle, France; Commanding Officer, Company B, 524th Military Police Battalion, La Rochelle, France; Commanding Officer, Company C, 371st Armored Infantry Battalion, Nurnberg, Germany; Adjutant, 371st Armored Infantry Battalion, 2nd Armored Cavalry, Nurnberg, Germany; Training Officer, 2nd Infantry Brigade, U.S. Army Training Center, Fort Jackson, SC; Commanding Officer, 8th Battalion, 2nd Infantry Brigade, U.S. Army Training Center, Fort Jackson, South Carolina; Assistant Regimental Executive Officer, 2nd Training Regiment, U.S. Army Training Center, Fort Jackson, South Carolina; USAR, U.S. Army Military District Control Group, Columbia, South Carolina; Commanding Officer, 1st Battalion, 1st Brigade, South Carolina State Guard, Columbia, South Carolina; Deputy Chief of Staff for Logistics, Columbia, South Carolina; and Deputy Chief of Staff for Logistics, South Carolina State Guard. | Military schools attended include: The Infantry School, The Armored School, Command and General Staff College, USAR, National Security Management Course, National Defense University. | His awards and decorations include: Asiatic-Pacific Medal, Philippine Liberation Medal, American Defense Service Ribbon, German Occupation Ribbon, South Carolina State Guard Commendation Ribbon, National Defense Service Medal.