USS Hammann, DD 412, was built at Federal Shipbuilding and Dry Dock Co., Kearny, New Jersey and commissioned in August 1939, under the command of Lieutenant Commander

Charles Hazeltine Hammann was born at Baltimore, Maryland, on 16 March 1892. He was appointed ensign in the Naval Reserve Flying Corps during World War I.    On 21 August 1918, while piloting a Navy seaplane near Pola, he landed on the Adriatic Sea to rescue Ensign George H. Ludlow, whose aircraft had been shot down by Austro-Hungarian forces. Although Hammann's plane was not designed for two persons and despite the risk of enemy attack, he successfully completed the rescue and returned to base at Porto Corsini, Italy. He was awarded the Medal of Honor for this exploit.    Ensign Hammann lost his life while on active duty at Langley Field, Virginia, 14 June 1919.

Arnold E. True.
   Her service over the next thirty months included active participation in 1941 “operations short of war” in the Atlantic. Transferred to the Pacific in January 1942, she took part in operations in the South Pacific in February–May 1942 including the Battle of Coral Sea.
   During the Battle of Midway in early June 1942, Hammann screened USS Yorktown (CV 5). While tied alongside Yorktown on the afternoon of 6 June 1942, assisting in her salvage, Hammann was torpedoed by the Japanese submarine I-168 and sank in a few minutes. Casualties among her crew were very heavy.