The wrecked Mahon class destroyers USS Cassin DD-372 and USS Downed DD-375 lie in dry dock, with USS Pennsylvania BB-38 astern. The torpedoed USS Helena CL-50 is beyond the crane at right. Incendiary bombs landed between the ships and started huge fires. Cassin slipped from her keel blocks when the dry dock was flooded and fell against the Downes; both destroyers were abandoned when ammunition and torpedoes began to explode. Post-attack work on Cassin and Downes began with the removal of machinery and other salvageable gears which were shipped to Mare Island Navy Yard. Downes was decommissioned on 20 June 1042. Rebuilt around a new hull, Downes was recommissioned at Mare Island 15 November 1943; Cassin was recommissioned on 5 February 1944. Downes received four battle stars in World War II; Cassin received six. Pennsylvania was one of the first ships to open fire against the attacking Japanese planes. Severely strafed by Japanese planes attempting to torpedo the caisson of the dry dock, Pennsylvania underwent repairs from 29 December 1941 to 30 March 1942 at San Francisco. Pennsylvania returned to play a major role in the Pacific campaign and received eight battle stars for World War II service.

US Navy1941-12-07