USS Oglala

	Massachusetts after she was bought and remodeled by the Eastern Steamship Corporation in 1912.
History
United States
Name	Massachusetts
Namesake	Commonwealth of Massachusetts
Owner	New England Navigation Company (1907–1911); Maine Steamship Company (1911–1912); Eastern Steamship Corporation (1912–1919); Eastern Steamship Lines (1917);
Port of registry	Boston (1914)
Ordered	1907
Builder	William Cramp & Sons, Philadelphia, Pennsylvania
Yard number	342
Launched	29 January 1907
Refit	Converted to passenger service & fuel oil, 1911
Home port	New London, CT
Identification	US official number 204012; code letters: KWBM; ; w/t call sign: KJM (by 1914);
Fate	Sold to US Navy, 31 October 1917
General characteristics
Tonnage	4,029 GRT (1908); 4,779 GRT (1913); 1,724 NRT (1908); 2,575 NRT (1913);
Length	375.0 ft (114.3 m) Registered
Beam	52.2 ft (15.9 m)
Depth	31.6 ft (9.6 m) (1908); 30.2 ft (9.2 m) (1913); 31.6 ft (9.6 m) (1914);
Decks	2
Crew	60 (1908); 107 (1913);
	Operating as USS Shawmut (CM-4) in the Caribbean in April 1924
United States
Name	Massachusetts (1917–1918); Shawmut (1918–1928); Oglala (1928–1965);
Namesake	Commonwealth of Massachusetts; Shawmut Peninsula; Oglala Lakota;
Acquired	31 October 1917
Commissioned	7 December 1917; 28 February 1944;
Decommissioned	11 July 1946
Renamed	Shawmut, 7 January 1918; Oglala, 1 January 1928;
Reclassified	Minelayer (CM), 1920; Internal Combustion Engine Repair Ship (ARG), 21 May 1943;
Stricken	12 July 1946
Identification	Hull symbol: ID-1255; Code letters: GRJL; ; Hull symbol: CM-4; Code letters: NEPJ; ; Hull symbol: ARG-1; Code letters: NPXU; ;
Fate	Transferred to Maritime Commission (MARCOM), 12 July 1946; Transferred to War Shipping Administration (WSA), March 1947; Sold for scrap, November 1965;
General characteristics
Class & type	Aroostook-class minelayer
Tonnage	4,779 GRT (1918); 2,575 NRT (1918);
Displacement	3,800 long tons (3,900 t) (1918)
Length	395 ft (120 m) o.a (1918); 375 ft (114 m) p.p.;
Beam	52 ft 2 in (15.90 m)
Draft	18 ft 6 in (5.64 m); 16 ft (4.9 m) (1921);
Depth of hold	31 ft 7 in (9.63 m)
Installed power	3 × White-Forster 180 psi (1,200 kPa) saturated steam boilers; 8 × single ended cylindrical boilers (1921); 7,000 ihp (5,200 kW); 337 NHP;
Propulsion	2 × vertical triple expansion engines; 2 × screws;
Speed	20 kn (37 km/h)
Range	5,000 nmi (9,300 km)
Capacity	110 men
Complement	407; 425 (1921);
Armament	1921; 1 × 3-inch (76 mm)/50 caliber dual-purpose (DP) gun; 2 × machine guns; 1944; 1 × 5-inch (127 mm)/38 caliber DP gun; 4 × 3-in/50 caliber DP guns; 2 × twin 40 mm (1.6 in) Bofors guns;

USS Oglala (ID-1255/CM-4/ARG-1) was a minelayer in the United States Navy. Commissioned as Massachusetts, she was renamed Shawmut a month later, and in 1928, was renamed after the Oglala, a sub-tribe of the Lakota, residing in the Black Hills of South Dakota.

Massachusetts was built as a fast cargo vessel for the New England Navigation Company by William Cramp & Sons of Philadelphia in 1907. In 1911 the ship was sold to the Maine Steamship Company and converted to passenger service. The next year Massachusetts was sold to the Eastern Steamship Corporation. The ship then operated in overnight coastal passenger steamer service through the Cape Cod Canal and Long Island Sound between Boston and New York City. After the US entered World War I, Massachusetts and her sister ship Bunker Hill, were among eight civilian steamships purchased to lay the North Sea Mine Barrage.