Aldebaran class Provision Store Ship: 
Displacement: 13,850 tons (full load) 
Length: 459' 
Beam: 63' 
Draft: 26' 
Speed: 16.6 knots (max); 10 knots (econ) 
Armament: 1 5"/38 DP; 4 3"/50 DP; 10 20mm 
Complement: 
Cargo: 5,443 DWT 
Geared turbine or diesel-electric, single screw, 6,000 hp 
Commissioned 1940 
 

The stores ship embarked upon her first Navy mission on 26 January, departing from San Francisco on a round-trip voyage via Pearl Harbor to Pago Pago, Samoa. Following her maiden mission for the Navy, Aldebaran remained at San Francisco until 29 March when she put to sea with a cargo bound for Hawaii, The ship made a seven-day layover at Pearl Harbor between 5 and 12 April and returned to San Francisco on the 20th. Upon her arrival back on the west coast, she entered a civilian dry dock at Oakland, California, to begin conversion to a fleet provisioning ship. Major modifications were completed by 21 October, and finishing touches were added over the next three weeks. On 14 November, Aldebaran departed San Francisco on her way to San Diego. Following a three-day stay at that port between 16 and 19 November, she got underway for Hawaii. Aldebaran discharged cargo at Pearl Harbor during the last six of days of November and, after an overnight stop at Maui, headed back to the west coast on 1 December. Aldebaran arrived at San Francisco on the 6th. On the following morning, the Japanese attacked Pearl Harbor and plunged the United States into World War II. 

The Aldebaran departed on her first wartime voyage on 17 November. Over the next six months, Aldebaran completed four round-trip runs carrying provisions and passengers between San Francisco and Hawaii. She concluded the fourth of those Pearl Harbor shuttle assignments at San Francisco on 6 June 1942. 

Her next assignment took the ship beyond Hawaii to the South. She stood out of San Francisco on 23 June, stopped at Pearl Harbor early in July, and then spent the remainder of the summer of 1942 making calls at ports on the South Pacific circuit. Aldebaran visited Samoa, Tongatabu, New Caledonia, and Espiritu Santo before returning to San Francisco on 23 September. 

That first wartime series of port calls in the South Pacific established a pattern of operations for her that endured through the next 20 months. Aldebaran loaded cargo at San Francisco and then embarked upon long, circuitous voyages that took her back to New Caledonia, Samoa, and Espiritu Santo. New places also cropped up on her itinerary - Havannah Harbor at Efate, and Purvis Bay, Tulagi, and Guadalcanal in the Solomon Islands. She then returned to San Francisco at the conclusion of all but the last of those long re-supply missions. 

In May 1944, during the run back to the west coast from Espiritu Santo, Aldebaran was diverted to Hawaii to load cargo bound for the Central Pacific. She arrived in Pearl Harbor on 24 May, took on her cargo, and returned to sea on the 29th. The ship entered Kwajalein Atoll in the Marshall Islands on 5 June and spent six days issuing, fresh and frozen provisions to ships about to assault the Mariana Islands. She headed back to Pearl Harbor on 12 June and stood into that port on the 18th. Aldebaran spent the next nine months carrying provisions to ships at forward bases in the Marshalls and Carolines. Her most frequent ports of call were Eniwetok in the Marshalls and Ulithi in the Carolines; however, she made one visit each to Kwajalein in the Marshalls, Manus in the Admiralty Islands, and Guam in the Marianas. At the conclusion of each supply mission, she returned to either Pearl Harbor or San Francisco to load additional cargo. 

On 29 March 1945, Aldebaran arrived in San Francisco to complete the last of her re-supply missions to ships in the anchorage in the Central Pacific atolls. On 10 April, she departed San Francisco for Pearl Harbor where she spent the period 16 to 21 April fitting out for a new mission, replenishing the fast carriers and their screens at sea. Aldebaran stood out of Pearl Harbor on the 21st and arrived in Ulithi on 2 May. There, she reported for duty with Task Unit (TU) 50.8.5, part of the underway replenishment group. She departed Ulithi in company with TU 50.8.5 on May and joined the rest of Task Group (TG) 50.8 at sea. The stores ship spent about five weeks at sea replenishing the warships engaged in the Okinawa campaign before putting in at Guam on 13 June to reload. For the remaining two months of hostilities, Aldebaran provided logistics support for the carrier task groups making air strikes on the Japanese home islands, returning periodically to either Guam or Ulithi to restock her larder. 

Hostilities ceased on 15 August 1945, but Aldebaran continued replenishment-at-sea during the initial stages of the occupation of Japan. She was present to Tokyo Bay on 2 signed the surrender document on board Missouri (BB-63). For the remainder of 1945, Aldebaran provided logistics support for forces occupying Japan and her former conquests. On 17 January 1946, the stores ship departed Taku, Chifia, on her way back to the United States. She arrived in Seattle, Wash., on 31 Januar y and entered the Puget Sound Naval Shipyard a week later for a two-month repair period. 

Aldebaran returned to Seattle on 6 April and began preparations for her last voyage to the Far East. On 22 April, she put to sea bound for Japan. The ship reached Yokosuka on 8 May and, from there, continued on to Tsingtao, China, and Okinawa. On 15 June, Aldebaran departed Okinawa to return to the United States. Her ultimate destination was the east coast. After a stop at San Pedro, Calif., she resumed her voyage, transited the Panama Canal, and arrived at Bayonne, N.J., on 18 July. 

After a voyage to North Africa and western Europe in August and September, Aldebaran settled into a routine of operations along the east coast punctuated by voyages to the West Indies to provide logistics support to bases and ships in that region and to participate in exercises. Such pursuits occupied her time for almost 19 months, until the beginning of June 1948. On the 4th, she stood out of Chesapeake Bay to embark upon the first of many missions to the Mediterranean Sea. 

For the next two decades, Aldebaran alternated between assignments to the Mediterranean Sea and operations in the western Atlantic. Unlike most other ships attached to the 6th Fleet, she did not normally serve extended periods of time in the Mediterranean. Instead, her cruises tended to be about six to ten weeks in duration, and she generally made two or three of them a year. She would remain in the Mediterranean as long as she retained a sufficient stock of provisions for issue. When those stocks began to run low, Aldebaran returned to the United States. Turnaround time at home varied. Scheduled overhauls meant extended periods in the United States. In addition, other re-supply missions, such as to forces operating in the West Indies, replaced voyages to the Mediterranean on her schedule. Occasional interludes in northern European waters also varied Aldebaran's itinerary. 

Twice during her postwar career, Aldebaran participated in operations for which she received the Armed forces Expeditionary Medal. During the summer of 1958, the United States landed marines in Lebanon to help restore domestic order in that country. The stores ship got underway from Norfolk just four days after the landings to provide logistics services to the ships supporting those troops. Four years later, in the fall of 1962, President John F. Kennedy surrounded the island of Cuba with a cordon of warships to stop the flow of Soviet missiles to that island and to force the removal of those already in place. Aldebaran's at-sea replenishment capabilities helped those ships maintain a constant vigil thereby contributing to the successful conclusion of the matter. 

Aldebaran continued her active service to Unites States naval forces in the Mediterranean Sea and in the West Indies until mid-1968. On 28 June 1968, she was placed out of commission at Norfolk. Four months later, on 29 October, Aldebaran was transferred to the Maritime Administration to be berthed with the National Defense Reserve Fleet at James River, Va. That transfer was made permanent on 30 June 1969. Aldebaran's name was struck from the Navy list on I June 1973, and she was sold on 14 November 1974 to Andy International, Brownsville, Tex., for scrapping. 

The USS Aldebaran was awarded two battle stars during World War II.