Complex sentence: Wilkin joined the Army from Longmeadow, Massachusetts, and by March 18,1945 was serving as a Corporal in Company C, 157th Infantry Regiment, 45th Infantry Division.
Split into simpler sentences: Wilkin joined the Army from Longmeadow, Massachusetts. In March 18,1945 he was serving as a Corporal in Company C, 157th Infantry Regiment, 45th Infantry Division.