The President of the United States of America takes pride in presenting the Navy Cross (Posthumously) to Lieutenant Commander Earl Kenneth Olsen, United States Navy, for extraordinary heroism and distinguished service in the line of his profession as Engineering Officer aboard the Heavy Cruiser U.S.S. Pensacola (CA-24), after the torpedoing of his ship in enemy-controlled waters during the Battle of Tassafaronga on the night of 30 November 1942. Lieutenant Commander Olsen coolly and efficiently directed the evacuation of the surviving personnel and attempted to carry the body of another officer to a place of safety, after enemy torpedo fire had flooded the engine room where Lieutenant Commander Olsen was stationed. As a result of his gallant spirit of self-sacrifice on behalf of the men on watch with him, he succumbed to smoke and toxic gasses. The conduct of Lieutenant Commander Olsen throughout this action reflects great credit upon himself, and was in keeping with the highest traditions of the United States Naval Service. He gallantly gave his life for his country.