Speed 11 k
Armament 1 3", 4 40mm
Proserpine (ARL 21) was laid down as LST-1116 by Chicago Bridge and Iron Co. 2 October 1944 launched 28 December 1944, and commissioned 9 January l945.
After dry-docking in Mobile, Ala., LST-1116 commenced shakedown in St. Andrews Bay, Fla. 31 January 1945. She then decommissioned 15 February at Gibbs Gas Engine Co. Jacksonville, Fla., underwent conversion, and recommissioned as Proserpine (ARL-21), a landing craft repair ship, 31 May 1945.
Assigned to Commander, Amphibious Force, Atlantic for shakedown, Proserpine operated out of Hampton Roads, Va. from 14 June through 6 July. Thence passing via the Windward Passage and the Panama Canal, she called at San Diego, Calif. 4 August. Three weeks later she was at Pearl Harbor. From there she moved on to provide mobile repair services at Eniwetok through 16 September, at Guam through 6 October, and at Leyte, P.I. through 1 April 1946.
By the end of April 1946, Proserpine stood out of Pearl Harbor and proceeded via the Panama Canal, Houston, and New Orleans for Mayport, Fla., arriving there 1 May. She decommissioned and was placed in reserve at Green Cove Springs, Fla.18 January 1947.
Reactivation of Proserpine commenced 19 September 1950 and she recommissioned 27 October 1950, Lt. Comdr. J. B. Darrow in command. She entered drydock at Merrill-Stevens Shipyard, Jacksonville, Fla. 21 November, after which she commenced refresher training in Chesapeake Bay.
Proserpine returned to Little Creek, Va. and commenced repair activities 1 April 1951. Through 1955 she operated at the Amphibious Base, Little Creek, Va., with regular training cruises into the Virginia Capes Operating Areas, and periodic short deployments to the Caribbean. Placed in reserve at Little Creek 15 February 1956, she decommissioned 24 May and remained in reserve until sold 26 September 1960 to Interamerican Standard Co., New York.