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Sea Marlin as painted by Captain George Ekstrom
History
United States
Name	Sea Marlin
Owner	War Shipping Administration
Operator	Grace Line
Port of registry	New Orleans, LA
Builder	Ingalls Shipbuilding, Pascagoula Mississippi
Yard number	401, USMC 857
Laid down	21 April 1943
Launched	27 September 1943
In service	31 January 1944
Out of service	2 May 1946
Identification	U.S. Official Number: 244978 Signal: KVMO
Notes	U.S.N. Armed Guard aboard awarded Battle Star – Invasion of Okinawa
Isthmian Steamship Company
Acquired	1947
Renamed	SS Steel Director
Port of registry	New York
Identification	U.S. Official Number: 244978 Signal: KVMO
Fate	6 March 1956 Isthmian was sold to States Marine Lines.
States Marine Lines
Name	SS Steel Director
Acquired	6 March 1956
Port of registry	New York
Identification	U.S. Official Number: 244978 Signal: KVMO
Fate	Scrapped June 1971
General characteristics
Class and type	C3-S-A2
Tonnage	7,886 GRT, 4,600 NRT 10,681 DWT
Length	492 ft (150.0 m) (overall) 468.5 ft (142.8 m) (registry)
Beam	69.6 ft (21.2 m)
Draft	28.5 ft (8.7 m)
Depth	29.5 ft (9.0 m)
Propulsion	Westinghouse DR geared turbine, 2 x single screwed shaft horsepower 8,500
Speed	16.5 knots
Capacity	447,760 cu ft (12,679.2 m) (bale) 2,111 (troops)
Complement	Merchant Marine, US Army and US Navy
Armament	1 single 5 inch mount aft. 12 AA mounts fore, amidship and aft

SS Sea Marlin was a C3-S-A2 cargo ship operated for the War Shipping Administration (WSA) by Grace Lines during World War II. WSA allocated Sea Marlin to United States Army requirements. Sea Marlin was crewed by United States Merchant Marines, with a contingent of the US Naval Armed Guards for the guns and had a complement of the US Army Transportation Corps (Water Division) aboard for troop administration.

The ship was laid down 21 April 1943 for the U.S. Maritime Commission (USMC) as hull #401, USMC #857 at Ingalls Shipbuilding in Pascagoula Mississippi. Sea Marlin was launched on 27 September 1943, completed conversion to a 2,111 berth transport on 31 January 1944 and immediately delivered to WSA at Mobile, Alabama.

Sea Marlin was registered with U.S. Official Number 244978, signal KVMO with home port of New Orleans at 7,886 GRT, 4,600 NRT with a registry length of 468.5 ft (142.8 m), 69.6 ft (21.2 m) beam and depth of 29.5 ft (9.0 m).

World War II

Sea Marlin departed New Orleans on 9 February 1944 bound for the South West Pacific destinations including the ports of Townsville, Brisbane and Sydney in Australia, Milne Bay, Langemak in New Guinea and Auckland, New Zealand. After return to San Francisco 28 April the ship departed in May for the New Guinea area with stops at Milne Bay, Oro Bay, Finschhafen, Langemak and Seeadler on Manus Island with a return to San Francisco 9 July 1944.

In the last half of 1944, the ship began supporting operations in the Central Pacific making two trips from San Francisco to Honolulu and then Eniwetok and Saipan via Honolulu August to October 1944. Shifting to Seattle the ship departed 30 November 1944 for Honolulu, Eniwetok and Saipan with the addition of calls at Tinian, Ulithi, Angaur, Peleliu, Manus Island, Guadalcanal, Noumea and Espiritu Santo with eventual return to San Francisco on 15 February 1945. On 10 March the ship again sailed for Honolulu, Eniwetok, Saipan, Nouméa, Guadalcanal and Ulithi with the addition of Okinawa arriving back in San Francisco 19 July to depart again 31 July for Eniwetok and Ulithi with the addition of Manila. The ship was delayed for repairs there after a collision in Manila Bay with the T2 type tanker Bemis Heights on 26 August 1945. Sea Marlin reached Los Angeles on 13 November 1945. The last Pacific operation for Sea Marlin was departure from Los Angeles on 12 December for Okinawa and return 18 January 1946 to Portland, Oregon with 1,962 troops.

In February, the ship transferred to the Atlantic making trips to Liverpool and Le Havre to return troops to the United States arriving in New York 1 April 1945. Sea Marlin then sailed for Norfolk, Virginia arriving 2 May for deactivation and lay up.

Among the units transported were: 17th Naval Construction Battalion & 31st Special Naval Construction Battalion (Seabees), 96th Infantry Division Headquarters personnel, Fuerza Aérea Expedicionaria Mexicana (Mexican Air Force) Escuadrón 201, 193rd Tank Battalion, and the US Army Air Force Sixth Bombardment Group.

Merchant ships did not receive battle stars but the ship's Naval Armed Guard received a Battle Star for the Assault and occupation of Okinawa Gunto for the period 24—30 June 1945.

Post War Service

On May 2, 1946 Sea Marlin arrived at Norfolk for deactivation and entered the Reserve Fleet at Lee Hall, VA in the James River on 9 May. On 4 September the ship was removed from the reserve fleet under agreement with Moran Towing & Transportation Company for conversion under Maritime Commission contract to commercial configuration by the J.K Welding Company, Yonkers, NY for a cost of $300,000. Isthmian Steamship Company purchased Sea Marlin on 24 February 1947 for $1,280,730 changing its name to Steel Director. In 1956 the ship was sold to States Marine Lines and operated under the same name until scrapped in 1971. Steel Director departed Saigon, South Vietnam on 17 May 1971 for Kaohsiung, Republic of China prior where she was to be scrapped the next month.

Footnotes

1. The Army operated major embarkation ports at San Francisco, Seattle and Los Angeles. See New York Port of Embarkation for the scope of such ports that included the port facilities themselves, often the entire port, as well as associated camps, rail facilities and other transportation assets.

References

1. ^ Merchant Vessels of the United States 1945. Washington, D.C.: U.S. Treasury Department, Bureau of Customs. 1945. p. 81. hdl:2027/osu.32435066706920. Retrieved 22 August 2021.
2. ^ Maritime Administration. "Sea Marlin". Ship History Database Vessel Status Card. U.S. Department of Transportation, Maritime Administration. Retrieved 7 March 2015.
3. Grover, David (1987). U.S. Army Ships and Watercraft of World War II. Naval Institute Press. p. 19. ISBN 0-87021-766-6. LCCN 87015514.
4. United States War Department (1944). FM 55-105. United States Department of War. p. 12 Section 14, Allocated Vessels, Diagrams following p. 64.
5. Colton, Tim (June 30, 2020). "Ingalls Shipbuilding". ShipbuildingHistory. Retrieved 20 August 2021.
6. ^ "S.S. Steel Director". IsthmianLines.com. 2003. Retrieved 20 August 2021.
7. ^ Charles, Roland W. (1947). Troopships of World War II (PDF). Washington: The Army Transportation Association. LCCN 47004779.
8. Maritime Administration. "Bemis Heights". Ship History Database Vessel Status Card. U.S. Department of Transportation, Maritime Administration. Retrieved 21 August 2021.
9. "7 Ports Await 17,500 G.I.s On 33 Vessels" (PDF). Utica Observer-Dispatch. January 18, 1946. p. 8. Retrieved 21 August 2021.
10. "U.S. Navy Records Search & Veteran Locator | TWS".
11. Davidson, Orlando R., J. Carl Willems, and Joseph A. Kahl. Deadeyes (The). Washington: Infantry Journal, 1947.
12. Strike of the Aztec Eagles - the story
13. MILITARY HISTORY-1892-1988
14. Sixth Bombardment Group - A History:B-29 Super Fortress Then and Now
15. "U.S. Merchant Ships Participating in Pacific Theater Combat Operations and Engagements Earning Battle Stars—Assault-occupation of Okinawa Gunto". American Merchant Marine at War. 9 September 2003. Retrieved 21 August 2021.

• 1943 ships
• Type C3 ships
• Ships built in Pascagoula, Mississippi
• Merchant ships of the United States
• United States Merchant Marine
• Troop ships of the War Shipping Administration
• World War II merchant ships of the United States