Corpsmen treating casualties on board USS Yorktown (CV-5), shortly after the carrier had been hit by Japanese bombs on 4 June 1942. The dead and wounded were members of the crew of 1.1 machine gun mount # 4, in the center background. They were struck by fragments from a bomb that exploded on the flight deck just aft of the midships elevator. This view looks directly to starboard from the front of the midships elevator. The aircraft crane is at left, with 1.1 gun mount # 3 visible in the upper left corner. Note bearded Chief Petty Officer walking by, flight deck clothing worn by some of those present and fire extinguisher in the lower left. Official U.S. Navy Photograph, now in the collections of the National Archives.