USS Santa Olivia

History
USS Santa Olivia (SP-3125), location unknown, 1919
Name	USS Santa Olivia (SP-3125)
Owner	W. R. Grace & Co. (1918–25) American-Hawaiian Line (1925–46) Star Line of Panama (1946–55)
Operator	U.S. Navy (1918–19) W. R. Grace & Co. (1919–22) Pacific Mail SSC (1922–25) American-Hawaiian Line (1925–46) Star Line of Panama (1946–55)
Builder	William Cramp & Sons, Philadelphia
Yard number	444
Launched	12 January 1918
Completed	May 1918
Acquired	May 1918
Commissioned	(USN): 1 Jul 1918 – 21 Jul 1919
Maiden voyage	16 Feb 1918
In service	16 Feb 1918 – 1950s
Renamed	Santa Olivia (1919) Kansan (1925) Jackstar (1946)
Fate	Scrapped, La Spezia, Italy, 30 December 1954
General characteristics
Type	Freighter
Tonnage	6,422 GRT, 3,877 NRT
Length	420 ft 6 ins
Beam	53 ft 7 ins
Draft	28 ft 4 ins
Depth of hold	34 ft 2 ins
Decks	3
Installed power	1 × 3,000 IHP, 4-cyl. quadruple expansion
Propulsion	Single screw
Speed	12 knots
Complement	USN service: 98 Merchant service: 41 (1950)
Armament	1 × 6 inch; 1 × 6-pdr
General characteristics
Type	Troop transport
Displacement	13,340 long tons
Troops	32 officers, 1,825 enlisted
Complement	21 officers, 168 enlisted
Notes	Other characteristics similar or identical to freighter

USS Santa Olivia (SP-3125) was a cargo ship and later troop transport that served with the United States Navy during and after World War I. The ship later went into merchant service as a freighter, and during World War II took part in a number of transatlantic convoys.

Built in 1918, Santa Olivia was acquired by the Navy on completion, and during the war made two voyages to France as a cargo ship. After the war, she was converted into a troop transport, and repatriated almost 7,500 U.S. troops in four round trips in 1919. A teenage Humphrey Bogart served aboard Santa Olivia in this period.

Decommissioned from the Navy, Santa Olivia entered merchant service for W. R. Grace & Co. in late 1919 as the freighter SS Santa Olivia, operating between the United States and South America. In 1922, the vessel was transferred to the Pacific Mail Steamship Company and used in United States intercoastal service. In 1925, Santa Olivia was sold to the American Hawaiian Steamship Company. Renamed SS Kansan, the ship remained in intercoastal service into the 1930s. During World War II, Kansan transported aircraft, explosives and other vital supplies in convoy to the United Kingdom during the Battle of the Atlantic.

After the war, Kansan was sold to a Panamanian company and renamed SS Jackstar. Jackstar survived bombardment by Arab forces while unloading cargoes at Tel Aviv, Israel during the 1948 Arab-Israeli War. The ship was sold for scrap in 1954.