SS President Coolidge

American ocean liner sunk by mines in the New Hebrides

15°31′27.12″S 167°14′6.78″E / 15.5242000°S 167.2352167°E / -15.5242000; 167.2352167

SS President Coolidge
History
United States
NamePresident Coolidge
NamesakeCalvin Coolidge
Owner
  • Dollar Steamship Lines (1931–1937)
  • American President Lines (1937–1942)
Operator
  • Dollar Steamship Lines (1931–1937)
  • American President Lines (1937–1942)
Port of registrySan Francisco[1]
RouteSan Francisco – Kobe – Shanghai – Manila[5]
Ordered26 October 1929[4]
BuilderNewport News Shipbuilding[1]
CostUS$8,017,690[citation needed]
Yard number340[3]
Laid down22 April 1930
Launched21 February 1931
Sponsored byMrs. Calvin C. Coolidge
Completed1 October 1931 (delivered)
HomeportSan Francisco
Identification
  • official number 231219[1]
  • signal code MJPF (until 1933)[1]
  • Call sign KDMX (from 1934)[2]
FateSunk by mines, 26 October 1942[3]
General characteristics
TypeOcean liner, then troopship
Tonnage
  • 21,936 GRT[1]
  • 13,029 NRT[1]
Length
  • 615.0 ft (187.5 m)[1] p/p
  • 653 ft (199 m) o/a[7]
Beam81.0 ft (24.7 m)[1]
Depth52.0 ft (15.8 m)[1]
Decks9
Installed power12 Babcock & Wilcox water tube boilers
Propulsionturbo-electric transmission
Speed
  • 20.5 knots (38 km/h)[3]
  • or 21 knots (39 km/h)[7]
Range14,400 mi (23,200 km)[6]
Capacity
  • 1,260 all classes (initial service)
  • 350 first class
  • 150 special/intermediate class
  • 988 passengers (modified)[8]
  • First class: 305
  • Tourist class: 133
  • Third class: 402
Troops
  • 3,586[6]
  • 5,000 (number aboard at sinking)[6]
Crew300 (initial service, passenger ship)
Notessister ship: SS President Hoover

SS President Coolidge was an American luxury ocean liner that was completed in 1931. She was operated by Dollar Steamship Lines until 1938, and then by American President Lines until 1941. She served as a troopship from December 1941 until October 1942, when she was sunk by mines in Espiritu Santo in the New Hebrides at the Espiritu Santo Naval Base, part of current-day Vanuatu. President Coolidge had a sister ship, SS President Hoover, completed in 1930 and lost when she ran aground in a typhoon in 1937.

History

Building

Dollar Lines ordered both ships on 26 October 1929.[4] The Newport News Shipbuilding and Drydock Company of Newport News, Virginia built the two ships, completing President Hoover in 1930. The keel for President Coolidge was laid 22 April 1930 and the ship was delivered 1 October 1931.[9] They were the largest merchant ships built in the United States up to that time.[4][10] Each ship had turbo-electric transmission, with a pair of steam turbo generators generating current that powered propulsion motors on the propeller shafts. Westinghouse built the turbo generators and propulsion motors for President Coolidge but General Electric built the turbo generators and propulsion motors for President Hoover.[1]

In the President Coolidge twelve Babcock & Wilcox superheater type water tube boilers provided steam for main and auxiliary power. Main power was generated by two Westinghouse 10,200 kilowatt turbine generator sets that normally each drove two 400 volt Westinghouse 13,200 horsepower synchronous motors directly connected to the two screws. If necessary the linkages were present so both motors and screws could be driven by either one of the two generator sets.[11]

Only the boiler feed and main lubricating pumps, driven directly from the steam turbines, were not electrical. Those included everything from cargo winches and other ship's auxiliary machinery to 365 Westinghouse stateroom fans. The 180 ship's auxiliary motors ranged from a tenth horsepower to the 13,250 horsepower main motors. The ship had 67,000 cubic feet (1,897.2 m3) refrigerated cargo space. President Coolidge was initially designed for 350 first class, 150 "special" or intermediate class passengers with space for 1,260 passengers of all classes and a crew of 300.[11]

The ship was launched on 21 February 1931 after Mrs. Calvin C. Coolidge broke a bottle of water that came from a brook on the Coolidge farm in Vermont on the bow.[11]

Pre-war service

President Hoover and President Coolidge ran between San Francisco and Manila via Kobe and Shanghai, and some round the World voyages that continued from Manila via Singapore, the Suez Canal, the Mediterranean Sea, New York City, the Panama Canal and thence back to San Francisco.

President Hoover and President Coolidge were aimed at holiday makers seeking sun in the Pacific and Far East. Passenger luxuries included spacious staterooms and lounges, private telephones, two saltwater swimming pools, a barbers' shop, beauty salon, gymnasium and soda fountain.[citation needed] President Coolidge broke several speed records on her crossings between Japan and San Francisco.[citation needed]

In December 1937 President Hoover ran aground on the Taiwanese coast and was declared a total loss. Dollar Steamship Lines was increasingly in debt, and in June 1938 President Coolidge was arrested for an unpaid debt of $35,000.[5] She was released in bond for a final trans-Pacific voyage, and then Dollar Lines was suspended from operation.[5] In August 1938 the United States Maritime Commission reorganised the company as American President Lines, which then ran the former Dollar Lines fleet until the Second World War.

In March 1939 President Coolidge was the last ship to sight the custom-built Chinese junk Sea Dragon, built and sailed by American explorer Richard Halliburton, before she disappeared in a typhoon some 1,200 miles (1,900 km) west of the Midway Islands.[12]

World War II

As relations between Japan and Britain deteriorated in 1940, President Coolidge helped to evacuate US citizens from Hong Kong. As Japanese aggression expanded, President Coolidge took part in evacuations from other parts of east Asia.

In 1941 the threat of war increased and the US War Department began to use President Coolidge for occasional voyages to Honolulu and Manila. In June 1941 President Coolidge became a troopship, reinforcing garrisons in the Pacific. On December 7, 1941 Japan attacked Pearl Harbor and on December 19 President Coolidge evacuated 125 critically injured naval patients from Hawaii, cared for by three hastily assigned Navy nurses and two Navy doctors from the Philippines that were already among passengers being evacuated from the war zone that had now reached Hawaii.[13] The ship reached San Francisco on 25 December.

On 12 January 1942 the first large convoy, including the large former ocean liners President Coolidge and SS Mariposa, to Australia after Pearl Harbor departed the United States carrying troops, supplies, ammunition and weapons, including P-40 fighters intended for the Philippines and Java with fifty of the planes carried by President Coolidge and Mariposa.[14][15] Arriving Melbourne on 1 February in President Coolidge, along with supplies and munitions not intended for transshipment beyond Australia, were the officers, known as the "Remember Pearl Harbor" (RPH) Group, selected to form the staff of the US Army Forces in Australia (USAFIA) as the command structure for what was to be the Southwest Pacific Area was evolving.[14]

President Coolidge performed these military duties in her pre-war civilian condition. Only in early 1942 was she hastily converted into a troopship. Many of her civilian fittings were either removed for safe keeping or boarded over for their protection. Her accommodation was reorganized to provide capacity for 5,000 troops.[6][16] Guns were mounted on her, she was painted haze gray and the War Shipping Administration assigned her to the US Navy.[17]

After her conversion, President Coolidge resumed service in the South West Pacific theatre. In the spring of 1942, escorted by the cruiser USS St. Louis,[18] she took Manuel Quezon, President of the Philippines from Melbourne[19] to San Francisco.

In her first few months of service President Coolidge's ports of call included Melbourne, Wellington, Auckland, Bora Bora, and Suva. On October 6, she left homeport of San Francisco for New Caledonia and the New Hebrides. Embarked were the 172nd Infantry Regiment, 43rd Division,[20] and a harbor defense unit intended to protect the airfield at Espiritu Santo that was providing bomber support for forces at Guadalcanal.[21]

Loss

SS President Coolidge being abandoned after beaching

A large military base and harbor had been established on Espiritu Santo and the harbor was heavily protected by mines. Information about safe entry into the harbor had been accidentally omitted from President Coolidge's sailing orders, and on her approach to Santo on 26 October 1942, President Coolidge, fearing Japanese submarines and unaware of the mine fields, tried to enter the harbor through the largest and most obvious channel. A mine struck the ship in the engine room, and moments later a second mine hit her near her stern.

Captain Henry Nelson, knowing that he was going to lose the ship, ran her aground and ordered troops to abandon ship. Not believing the ship would sink, troops were told to leave all of their belongings behind, under the impression that they would conduct salvage operations over the next few days.

Navajo (AT-64) during rescue operations

Over the next 90 minutes, 5,340 men from the ship got safely ashore. There was no panic as they disembarked; many even walked ashore. However, the captain's attempts to beach the ship were thwarted by a coral reef. President Coolidge listed heavily on her side, sank stern first, and slid down the slope into the channel.

There were only two casualties in the sinking.[22] The first was Fireman Robert Reid, who was working in the engine room and was killed by the first mine blast. The second, Captain Elwood Joseph Euart, 103rd Field Artillery Regiment, had safely left President Coolidge when he heard that there were still men in the infirmary who could not get out. He returned through one of the sea doors, successfully rescued the men, but was then unable to escape himself and went down with the ship. He was awarded the Distinguished Service Cross for his heroic actions.[23] A memorial to Euart is on the shore near the access points[citation needed] for the Coolidge. In 2013, Euart's body was reportedly located by a local dive guide, and a message was sent to the Australian High Commission, who then passed this on to US authorities in Hawaii. An American recovery team arrived in February 2014, and working with local operators, they found Euart's remains after 73 years, still with his dog tags and personal items, inside deep silt in the bottom of the wreck. Subsequent DNA testing of the remains matched with Euart's relatives, and his family was advised that the US military would perform a full military funeral service and that he would be buried with his parents.[24]

The loss of critical equipment being carried in President Coolidge, forcing redistribution of scarce local stores, combined with loss of the ship when shipping was critically short, delaying deployment of the 25th Division from Hawaii to the theater, complicated logistics during the crisis at Guadalcanal.[21] President Coolidge also held 591 pounds/268 kilos of quinine, at that time the entire stock of quinine held by the US.[25]

Official inquiries

There were three official inquiries surrounding the cause of the sinking. The first preliminary Court of Inquiry convened 12 November 1942 aboard the destroyer tender USS Whitney on the orders of Admiral Halsey. The Court of Inquiry recommended additional[citation needed] charges be laid against Captain Nelson. The matter was referred to a military commission which convened in Nouméa, New Caledonia on 8 December 1942. This commission acquitted Captain Nelson of guilt.

From the Commission of Inquiry it emerged that Merchant Marine vessels were not given all available tactical information, most notably regarding the placement of mines. This would have prevented the sinking. This outcome displeased the Navy Department, so Nelson was referred to a US Coast Guard Investigation Board on his return to the United States on 6 February 1943. However, this Investigation Board took no further action.

Salvage

After the war, items such as the propeller blades, bunker oil, brass casings of shells, electric motors, junction boxes and copper tubing were salvaged from the ship. Earthquakes have since collapsed some sections of the wreck, which now rests on her port side with her bow at a depth of 21 metres (69 ft) and her stern at 73 metres (240 ft).[3][26]

Protected wreck and dive site

In 1980 Vanuatu won independence from France and Britain, and on 18 November 1983, the government of the new republic declared that no salvage or recovery of any artifact would be allowed from President Coolidge.

Since then the ship has been used for recreational diving. Divers see a largely intact luxury cruise liner and a military ship. They can swim through numerous holds and decks. There are guns, cannons, Jeeps, helmets, trucks and personal supplies, a beautiful statue of "The Lady" (a porcelain relief of a lady riding a unicorn) chandeliers, and a mosaic tile fountain. Coral grows around, with many creatures such as reef fish, barracuda, lionfish, sea turtles and moray eels.

President Coolidge is a somewhat accessible shipwreck due to the relatively shallow site, easy beach access, and visibility. The depths involved mean that, with care and decompression stops, recreational divers can explore large parts of the wreck without specialized equipment. The massive size of the wreck, combined with the gradual downward slope, mean that care must be taken monitoring depth, as the diver's horizontal frame of reference may be skewed, preventing awareness of the continual gradual descent.

Footnotes

References

  1. ^ a b c d e f g h i j Lloyd's Register, Steamships and Motor Ships (PDF). London: Lloyd's Register. 1933. Retrieved 6 May 2013.
  2. ^ Lloyd's Register, Steamships and Motor Ships (PDF). London: Lloyd's Register. 1934. Retrieved 20 May 2013.
  3. ^ a b c d Pablobini; Vleggert, Nico (10 January 2012). "SS President Coolidge (+1942)". WreckSite. Retrieved 6 May 2013.
  4. ^ a b c "Part One: Robert Dollar and the SS President Hoover". SS President Hoover. The Takao Club. Retrieved 7 May 2013.
  5. ^ a b c "Part Two: The Wreck of the SS President Hoover". SS President Hoover. The Takao Club. Retrieved 7 May 2013.
  6. ^ a b c d Charles, Roland W. (1947). Troopships of World War II (PDF). Washington: The Army Transportation Association. p. 136. LCCN 47004779. Retrieved 10 November 2021.
  7. ^ a b Talbot-Booth 1942, p. 376.
  8. ^ "Traveling in style". Vessel History. American President Lines. Archived from the original on 17 January 2013. Retrieved 6 May 2013.
  9. ^ "Newport News Shipbuilding & Drydock Company". Pacific Marine Review. Vol. 28, no. 11. November 1931. p. 471. Retrieved 15 October 2018.
  10. ^ "Hoover Namesakes". Hoover Heads. Herbert Hoover Presidential Library and Museum. Archived from the original on 26 March 2013. Retrieved 7 May 2013.
  11. ^ a b c "Launching of the President Coolidge". Pacific Marine Review. Vol. 28, no. 3. March 1931. pp. 100–101. Retrieved 15 October 2018.
  12. ^ Doremus, John (10 September 2007). Evening with Ian Holland. The Passing Parade. 2CH.
  13. ^ Erickson, Ruth. "Oral History of The Pearl Harbor Attack, 7 December 1941". Naval History & Heritage Command. Retrieved 5 May 2013.
  14. ^ a b Mayo, Lida (1991). The Ordnance Department: On Beachhead And Battlefront. United States Army In World War II — The Technical Services. Washington, DC: Center Of Military History, United States Army. p. 40. LCCN 67-60000.
  15. ^ Matloif, Maurice; Snell, Edwin M. (1991). Strategic Planning For Coalition Warfare 1941–1942. United States Army In World War II — The War Department. Washington, DC: Center Of Military History, United States Army. p. 132. LCCN 53-61477.
  16. ^ Larson, Harold (1945). The Army's Cargo Fleet In World War II. Washington, D. C.: Office of the Chief of Transportation, Army Service Forces, U. S. Army. p. 136.
  17. ^ Grover, David (1987). US Army Ships and Watercraft of World War II. Annapolis, MD: Naval Institute Press. p. 6. ISBN 0-87021-766-6.)
  18. ^ "St. Louis". Dictionary of American Naval Fighting Ships. Navy Department, Naval History and Heritage Command. Retrieved 5 May 2013.
  19. ^ "Victoria". Dictionary of American Naval Fighting Ships. Navy Department, Naval History and Heritage Command. Retrieved 5 May 2013.
  20. ^ "43d Infantry Division— A Brief History". 43d Infantry Division Veterans Association. Archived from the original on 8 December 2013. Retrieved 5 May 2013.
  21. ^ a b Leighton, Richard M; Coakley, Robert W (1995). The War Department — Global Logistics And Strategy 1940–1943. United States Army In World War II. Washington, DC: Center Of Military History, United States Army. p. 394. LCCN 55-60001.
  22. ^ "History – 1920–31 Vessel Statistics". APL History. American President Lines. Archived from the original on 2012-12-17.
  23. ^ "Elwood J. Euart". American Battle Monuments Commission. Retrieved 1 November 2017.
  24. ^ DPAA news release 16-065 August 24, 2016
  25. ^ p. 191 Cline, Dennis Skeeter Beaters: Memories of the South Pacific, 1941-1945 DeForest Press, 2002
  26. ^ Harris, Richard (2006). "Tales from the South Pacific – diving medicine in Vanuatu". South Pacific Underwater Medicine Society Journal. 36 (1). Archived from the original on October 10, 2017. Retrieved 10 March 2013.{{cite journal}}: CS1 maint: unfit URL (link)

Sources and further reading

  • Doubilet, David (April 1988). "Wreck of the Coolidge". National Geographic. Vol. 173, no. 4. pp. 458–467. ISSN 0027-9358. OCLC 643483454.
  • Stone, Peter (2004) [1997]. The Lady and the President: The Life and Loss of the SS President Coolidge (2nd ed.). Yarram: Oceans Enterprises. ISBN 0958665729.
  • Talbot-Booth, E.C. (1942) [1936]. Ships and the Sea (Seventh ed.). London: Sampson Low, Marston & Co. Ltd.

External links

  • Naval History and Heritage Command photos: SS President Coolidge listing before sinking, SS President Coolidge before sinking, Sailors evacuating the sinking SS President Coolidge
  • SS President Coolidge Report, Armed Guard Unit Commander
  • "Dive the SS President Coolidge in Vanuatu". Aquamarine Ltd. 2004–2010.
  • "SS President Coolidge – Main Index". Michael McFadyen's Scuba Diving website.

Audio-visual media

  • Grave of the President (51-minute television documentary). Independent Productions. 1984. Retrieved 6 May 2013. In 1942, ocean liner President Coolidge accidentally struck two allied mines and sank. One of the world's biggest shipwrecks is now a popular dive destination.
  • Diving on the SS President Coolidge July 09 (8-minute video). Espiritu Santo: YouTube. 2009. Archived from the original on 2021-12-17. KBs diving off Espiritu Santo. Gear-up, dive areas. General external and internal video and stills in poor light. Drop tanks, trucks, medical supplies, the Lady etc. Moray (Nessie) appearance. Various video and stills in the Deco stop area.
  • v
  • t
  • e
Shipwrecks and maritime incidents in 1937
Shipwrecks
  • 1 Jan: Monte Carlo
  • 11 Jan: Volgas
  • 21 Jan: Roosevelt
  • January (unknown date): USS Stribling
  • 4 Mar:Loukia
  • 16 Mar: HMS Torrid
  • 30 Apr: España
  • 17 Jun: Jaime I
  • 26 Jun: USS Sanderling
  • 20 Jul: USS Sproston
  • 22 Jul: USS Anthony
  • 9 Aug: Nereus
  • 11 Aug Hai Chi, Hai Yung
  • 30 Aug: SS Tarpon (1887)
  • 28 Sep Chao Ho
  • 7 Oct: Muriel
  • 20 Oct: Argo
  • 25 Oct Ying Swei
  • 10 Nov: Hibernia
  • 13 Nov: Tzenny Chandris
  • 11 Dec: President Hoover
  • 12 Dec: USS Panay
  • 26 Dec: Saros
  • December (unknown date): Ohioan
  • Unknown date: Haida, Jules Michelet
Other incidents
  • 18 Jan: Felce
  • 24 Jan: English Trader
  • 17 Feb: Edward Luckenbach
  • 6 Mar: President Coolidge
  • March (unknown date): Ohioan
  • 7 Apr: Angelina Lauro
  • 30 Apr: Clan Macwhirter
  • 18 May: I-3, Monte Piana
  • 29 May: Deutschland (incident)
  • 14 Jun: Duke of Lancaster
  • 3 Aug: Noemijulia
  • 7 Aug: British Corporal
  • 8 Aug: Clan Macneil
  • 26 Aug: Cantabria
  • 2 Sep: Conte Verde, HMS Diamond, HMS Duchess, HMS Suffolk
  • 21 Sep: Cap Arcona
  • 24 Sep: Clan Alpine
  • 8 Nov: English Trader
  • 24 Nov: Birka
  • 12 Dec: Panay Incident
  • 28 Dec: Durraween, Wanganella
  • Unknown date: Murre, Port Nicholson
  • v
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Shipwrecks and maritime incidents in October 1942
Shipwrecks
  • 2 Oct: HMS Curacoa, Lisbon Maru, U-512
  • 5 Oct: U-582, U-619, Larry Doheny
  • 6 Oct: I-22
  • 8 Oct: U-179, John Carter Rose
  • 9 Oct: Pennington Court, U-171
  • 10 Oct: Komintern, Camden, HMT Orcades
  • 11 Oct: Fubuki, Furutaka, L-16
  • 12 Oct: USS Duncan, Murakumo, Natsugumo, U-597
  • 13 Oct: I-30, Loreto
  • 14 Oct: Caribou, Komet, Shch-213
  • 15 Oct: Drazki, USS Meredith, U-661
  • 16 Oct: Primrose Hill, U-353
  • 17 Oct: Empire Chaucer, Oboro
  • 20 Oct: U-216
  • 21 Oct: Palatia
  • 22 Oct: U-412, Winnipeg II
  • 23 Oct: City of Johannesburg, Empire Star
  • 24 Oct: U-599
  • 25 Oct: USS Seminole, Yura
  • 26 Oct: Anne Hutchinson, USS Porter, President Coolidge
  • 27 Oct: USS Hornet, U-627
  • 29 Oct: Abosso
  • 30 Oct: U-520, U-559, U-658
  • 31 Oct: USS YP-345
  • Unknown date: U-116, HMS Unique
Other incidents
  • 2 Oct: RMS Queen Mary
  • 12 Oct: HMS Loyal
  • 23 Oct: HMS Phoebe
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Reef diving regions
Reef dive sites
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Underwater artworks
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Wreck diving regions
Wreck dive sites
  • 115 (barge)
A
  • HMS A1
  • HMS A3
  • USS Aaron Ward
  • Abessinia
  • USS Accokeek
  • HMAS Adelaide
  • SS Admiral Sampson
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B
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C
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D
  • MV Dania
  • Daniel Lyons
  • David Tucker
  • SMS Dresden
  • SS D.R. Hanna
  • USCGC Duane
  • Dunraven
  • SS Dwight L. Moody
E
  • Eagle
  • Eastfield
  • SS Eber Ward
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  • HMT Elk
  • Ellengowan
  • USS Emmons
  • SS Emperor
  • RMS Empress of Ireland
  • SS Erie L. Hackley
  • SS Espagne
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F
  • HMS Falmouth
  • Fifi
  • Fleetwing
  • SS Francisco Morazan
  • SS Francis Hinton
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  • F.T. Barney
  • Fujikawa Maru
  • Fumizuki
G
  • Gallinipper
  • SATS General Botha
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  • George M. Cox
  • Georg Thiele
  • HMS Ghurka
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  • SAS Good Hope
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  • Gothenburg
  • Grace A. Channon
  • SS Grecian
  • Green Bay
  • MV Gregory Poole
  • Gunilda
H
  • MT Haven
  • SS Henry Chisholm
  • MT Hephaestus
  • Hermann Künne
  • HMS Hermes
  • Herzogin Cecilie
  • SS Hesper
  • Hilma Hooker
  • Hispania
  • Home
  • HMS Hood
  • HMAS Hobart
I
  • Igara
  • USS Indra
  • SS Ironsides
  • SS Isaac M. Scott
  • Island City
J
  • HMAS J1
  • HMAS J2
  • HMAS J4
  • HMAS J5
  • James Eagan Layne
  • J.S. Seaverns
  • SS John B. Cowle
  • John M. Osborn
  • SS John Mitchell
  • Jura
K
  • SS Kamloops
  • Kashi Maru
  • PS Keystone State
  • King Cruiser
  • USS Kittiwake
  • Kizugawa Maru
  • SMS Kronprinz
  • Kyarra
  • Kyle Spangler
L
  • PS Lady Elgin
  • Lady Thetis
  • HMS Laforey
  • SS Lakeland
  • USS Lamson
  • USAT Liberty
  • SS Louisiana
  • Louis Sheid
  • SS L.R. Doty
  • USS LST-507
  • Lumberman
M
  • HMS M2
  • HMCS Mackenzie
  • Madeira
  • SMS Markgraf
  • SS Marquette
  • Mayflower (scow)
  • Mikhail Lermontov
  • Maine
  • Maloja
  • HMS Maori
  • SS Maori
  • SS Margaret Olwill
  • Marguerite
  • SS Mauna Loa
  • USAT Meigs
  • Mendi
  • MV Mercedes I
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  • SS Midland City
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  • Minnedosa
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  • RMS Moldavia
  • SS Monarch
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  • HMS Montagu
  • SS M.M. Drake
  • MV RMS Mulheim
  • USS Muliphen
  • SS Myron
N
  • Nagato
  • Niagara
  • Niagara (tug)
  • HMCS Nipigon
  • SS Norman
  • Northerner
O
  • Oceana
  • SS Onoko
  • USS Oriskany
  • Oslofjord
  • Ozone
P
  • P29
  • P31
  • SS Panay
  • SS Papoose
  • Pedernales
  • Persier
  • HMAS Perth
  • SS Pewabic
  • SAS Pietermaritzburg
  • USS Pilotfish
  • Piłsudski
  • SS Pioneer
  • USCGC Point Swift
  • Pool Fisher
  • SS Port Kembla
  • HMS Port Napier
  • Preußen
  • President Coolidge
  • HMS Prince of Wales
Q
  • PS Queen Victoria
R
  • SS R.P. Resor
  • Radaas
  • USS Rankin
  • Rainbow Warrior
  • SS Regina
  • HMS Repulse
  • RMS Rhone
  • Riva Palacio
  • Robert C. Pringle
  • SS Robert Wallace
  • USS Rochester
  • Rondo
  • Rosehill
  • Rosinco
  • Rotorua
  • Rouse Simmons
  • Royal Adelaide
  • Royal Charter
  • Rozi
  • SS Russia
S
  • HMS Safari
  • Sagamore
  • HMCS Saguenay
  • Sakawa
  • Salem Express
  • SS Samuel Mather
  • Samuel P. Ely
  • Sanko Harvest
  • USS Saratoga
  • HMCS Saskatchewan
  • SS S.C. Baldwin
  • USS Schurz
  • USS Scuffle
  • USS Scrimmage
  • HMS Scylla
  • SS Selah Chamberlain
  • HMS Sidon
  • USCGC Spar
  • South Australian
  • USS Spiegel Grove
  • Sport
  • Stanegarth
  • Stanwood
  • Stella
  • SS Stepas Darius
  • HMS St Lawrence
  • SS Superior City
  • HMAS Swan
  • Sweepstakes
T
  • SS Tahoe
  • USCGC Tamaroa
  • USS Tarpon
  • Thesis
  • Thistlegorm
  • Thomas Friant
  • Thomas Wilson
  • Thunderbolt Wreck
  • Toa Maru
  • HMAS Tobruk
  • Tokai Maru
  • Torrey Canyon
  • SAS Transvaal
  • MV Treasure
  • HMNZS Tui
U
V
  • Varvassi
  • USS Vermilion
  • SS Vernon
  • SS Vienna
W
  • HMNZS Waikato
  • Walter L M Russ
  • Washingtonian (1913)
  • PS Waubuno
  • HMNZS Wellington
  • SS Wexford
  • SS William C. Moreland
  • SS Wisconsin
  • USS Wilkes-Barre
Y
  • USS Yancey
  • YO-257
  • Yongala
  • HMCS Yukon
Z
  • Zenobia
  • Zealandia
  • Zingara
Cave dive sites
Freshwater dive sites
Training sites