was designated for use as a target on 24 September 1920. Sunk as a target in mid-January 1922, she was struck from the Naval Vessel Register on 16 January 1922. Notes References External links history.navy.mil: USS Adder Photos hazegray.org: USS Adder Crescent Shipyard Information on Lewis Nixon's Crescent Shipyard, location of John P. Holland's site of operations in Elizabethtown, New Jersey. Adder 003 A-1 Ships built in Elizabeth, New Jersey 1901 ships Ships sunk as targets Maritime incidents in 1922