Major General James W. MacVay was commissioned an Infantry Officer upon graduation from Officer Candidate School Class 3-60, 3 May 1960. His first duty assignment was as Platoon Leader, Company B, 1st Battle Group, 109th Infantry, Scranton, Pennsylvania. | His subsequent duty assignments include: Weapons Platoon Leader, A Company, 1st Battle Group, 109th Infantry, Stroudsburg, Pennsylvania; Company Commander, Company C, 1st Battle Group, 109th Infantry, Stroudsburg, Pennsylvania; Adjutant, Operations Officer, 3rd Battle Group, 109th Infantry, Milton, Pennsylvania; Operations Officer, 55th Brigade, Scranton, Pennsylvania; Commander, 3rd Battalion, 109th Infantry, Milton, Pennsylvania; Division Operations and Training Officer, 28th Infantry Division, Harrisburg, Pennsylvania; Chief of Staff, 28th Infantry Division, Harrisburg, Pennsylvania; Assistant Division Commander (Maneuver), 28th Infantry Division, Harrisburg, Pennsylvania; Deputy Adjutant General, State Area Command, Fort Indiantown Gap, Annville, Pennsylvania; 48th Adjutant General of Pennsylvania, State Area Command, Fort Indiantown Gap, Pennsylvania.