Colonel Fredrick L. Kinsinger was commissioned an Infantry Officer upon graduation from Officer Candidate School 29 September 1942. His first duty assignment was as Company Executive Officer and Battalion Motor Transport Officer, Headquarters Company, 2nd Battalion, 13th Infantry, 8th Motorized Division. | His subsequent duty assignments include: Battalion Intelligence Officer, Camp Forrest, Tennessee; Platoon Leader, Company G, 13th Infantry, Fort Leonard Wood, Missouri; Platoon Leader, Company G, 13th Infantry, Camp Forrest, Tennessee; Platoon Leader, Company G, 13th Infantry, Eli Lodge, North Ireland; Platoon Leader, Company G, 13th Infantry, Brest, France; Regimental Motor Officer, 6960 Replacement Depot, Chateau Thierry, France; Platoon Leader, 5th Regiment IRTC, Fort McClellan, Alabama; Regimental Munitions Officer, 25th Combat Team, Fort Benning, Georgia; Instructor, Infantry, U.S. Army Reserves, Erie, Pennysylvania, Company Commander, 880th Ordnance, Erie, Pennsylvania; Student Ordnance School, Aberdeen Proving Ground, Maryland.