The official U.S. Navy site, https://www.history.navy.mil/research/histories/ship-histories/danfs/g/guadalcanal-ii.html provides the following history of the Guadalcanal LPH-7:
The Guadalcanal (LPH-7), an amphibious assault ship, was launched by the Philadelphia Naval Shipyard 16 March 1963, sponsored by Mrs. David Shoup, wife of the former Commandant of the Marine Corps; and commissioned 20 July 1963, Captain Dale K. Peterson in command.
Upon completion of sea trials and outfitting, Guadalcanal departed Philadelphia to join the Amphibious Forces, United States Atlantic Fleet. One of a new class of ships designed from the keel up to embark, transport, and land assault Marines by means of helicopters, she lends new strength and flexibility to amphibious operations. After departing Norfolk 23 October 1963 for 6 weeks shakedown training at Guantanamo Bay, Cuba, Guadalcanal steamed to Onslow Beach, North Carolina, 6 December for practice amphibious landings. She then carried on training and readiness operations with the Atlantic Fleet, based in Norfolk until departing for Panama 11 February 1964. Following 2 months on station as flagship for Commander PhibRon 12 with the 12 Marine Expeditionary Unit embarked and ready to land anywhere needed. Guadalcanal entered Philadelphia Naval Shipyard 26 May, but was deployed again 7 October as a unit of Operation “Steel Pike 1”, a NATO landing exercise on the beaches of southern Spain.
Guadalcanal has continued to serve in the Atlantic Fleet into 1967. One of the highlights of her career occurred 21 July 1966 when she recovered Gemini X astronauts after their spacecraft landed in the Atlantic east of Cape Kennedy.
The USS Guadalcanal was 603.675 feet long, had a 104-foot beam, and a 25.9 foot draft. The vessel had a maximum speed of 23 knots and consisted of a crew of 80 officers, 638 enlisted men and a 1,750 Marine detachment. The Guadalcanal was capable of housing 20 UH-46D Sea Knight aircraft, 10 MH-53E Sea Stallion Helicopters, 3 UH-1 Helicopters, and 3 AH-1 Helicopters, but the actual aircraft assigned to the vessel depended on the mission. The Guadalcanal was decommissioned on 31 August 1994 and finally sunk as a target in the Virginia Capes on 19 May 2005.