The President of the United States of America takes pride in presenting the Silver Star (Posthumously) to First Lieutenant Thomas A. C. Crimmins (MCSN: 0-30953), United States Marine Corps Reserve, for conspicuous gallantry and intrepidity as a member of a Forward Observation Team, attached to Battery B, First Battalion, Fifteenth Marines, SIXTH Marine Division in action against enemy Japanese forces during the drive on Naha, Okinawa Shima, Ryukyu Islands on 9 May 1945. Remaining in an exposed position on a hill under heavy Japanese mortar, machine gun and small arms fire, First Lieutenant Crimmins accurately adjusted artillery fire on hostile mortars that had trapped the Marine infantry battalion with which he was serving. Mortally wounded by enemy Rifle fire, First Lieutenant Crimmins, by his heroic devotion to duty and cool courage in the face of grave danger had sided in silencing enemy fire and, upheld the highest traditions of the United States Naval Service. He gallantly gave his life for his country.