| Navy | The US Navy |
| Type | Submarine |
| Class | Sargo |
| Pennant | 197 |
| Built by | Portsmouth Navy Yard (Kittery, Maine, U.S.A.) |
| Ordered | |
| Laid down | 27 Sep 1938 |
| Launched | 15 Aug 1939 |
| Commissioned | 1 Dec 1939 |
| Lost | 3 Oct 1944 |
| Loss position | |
| History | USS Seawolf (Lt.Cdr.Albert Marion Bontier) was most likely sunk by mistake in a safety zone for American submarines off Morotai in position 02º32'N, 129º18'E, by aircraft from the escort carrier USS Midway (CVE 63) and the destroyer escort USS Richard M. Rowell (DE 403). The American forces in the area had just been attacked by a Japanese submarine and Seawolf was apparently mistaken for it. There were no survivors. |
Commands listed for USS Seawolf (197)
Please note that we're still working on this section.
| Commander | From | To | ||
| 1 | Frederick Burdette Warder, USN | 1 Dec 1939 | 18 Jan 1943 | |
| 2 | Royce Lawrence Gross, USN | 18 Jan 1943 | 27 Jan 1944 | |
| 3 | Lt.Cdr. Richard Barr Lynch, USN | 4 Jun 1944 | 30 Jul 1944 | |
| 4 | Lt.Cdr. Albert Marion Bontier, USN | 30 Jul 1944 | 3 Oct 1944 (+) | |
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Noteable events involving Seawolf include:
8 Dec 1941
USS Seawolf (Lt.Cdr. F.B. Warder) departs Manila for her 1st war patrol. She is ordered to patrol off the San Bernardino Strait.
14 Dec 1941
USS Seawolf (Lt.Cdr. F.B. Warder) hits the Japanese seaplane carrier Sanyo Maru (8360 GRT, offsite link) with one torpedo off Aparri, Philippines. Unfortunately the torpedo fails to explode.
26 Dec 1941
USS Seawolf (Lt.Cdr. F.B. Warder) ended her 1st war patrol at Manila.
31 Dec 1941
USS Seawolf (Lt.Cdr. F.B. Warder) departs Manila for her 2nd war patrol.
9 Jan 1942
USS Seawolf (Lt.Cdr. F.B. Warder) ends her 2nd war patrol at Darwin, Australia.
16 Jan 1942
USS Seawolf (Lt.Cdr. F.B. Warder) leaves Darwin for her 3th war patrol loaded with some 40 tons of .50 caliber anti-aircraft ammunition for use by American forces on Corregidor.
28 Jan 1942
USS Seawolf (Lt.Cdr. F.B. Warder) unloads the ammunition at Corregidor. She takes on board spare torpedo's and 25 officers and men. She then departs for Surabaya, Java, Netherlands East Indies.
15 Feb 1942
USS Seawolf (Lt.Cdr. F.B. Warder) departs Surabaya for her 4th war patrol. She is ordered to patrol in the Java Sea.
1 Apr 1942
USS Seawolf (Lt.Cdr. F.B. Warder) torpedoes and damages the Japanese light cruiser Naka (offsite link) off Christmas Island in position 10º00'S, 105º00'E. (see map)
7 Apr 1942
USS Seawolf (Lt.Cdr. F.B. Warder) ends her 4th war patrol at Fremantle, Australia.
12 May 1942
USS Seawolf (Lt.Cdr. F.B. Warder) departs Fremantle for her 5th war patrol. She is ordered to patrol in the Philippines.
15 Jun 1942
USS Seawolf (Lt.Cdr. F.B. Warder) torpedoes and sinks the Japanese auxiliary gunboat Nampo Maru (1206 GRT) off Corregidor, Philippines in position 14º00'N, 120º00'E. (see map)
2 Jul 1942
USS Seawolf (Lt.Cdr. F.B. Warder) ends her 5th war patrol at Fremantle.
25 Jul 1942
USS Seawolf (Lt.Cdr. F.B. Warder) departs Fremantle for her 6th war patrol. She is ordered to patrol in the Sulu and Celebes Seas.
14 Aug 1942
USS Seawolf (Lt.Cdr. F.B. Warder) torpedoes and sinks the Japanese merchant passenger-cargo ship Hachigen Maru (3113 GRT) in the Sibitu Passage in position 05º07'N, 119º37'E. (see map)
25 Aug 1942
USS Seawolf (Lt.Cdr. F.B. Warder) torpedoes and sinks the Japanese transport ship Showa Maru (1349 GRT) off the north-east coast of Borneo in position 03º55'N, 118º59'E. (see map)
15 Sep 1942
USS Seawolf (Lt.Cdr. F.B. Warder) ends her 6th war patrol at Fremantle.
1 Oct 1942
USS Seawolf (Lt.Cdr. F.B. Warder) departs Fremantle for her 7th war patrol. She is ordered to patrol off the Davao Gulf, southern Philippines.
2 Nov 1942
USS Seawolf (Lt.Cdr. F.B. Warder) torpedoes and sinks the Japanese water tender Gifu Maru (2933 GRT) west-south-west of Cape San Augustin, Mindoro, Philippines in position 06º14'N, 126º07'E. (see map)
3 Nov 1942
USS Seawolf (Lt.Cdr. F.B. Warder) torpedoes and sinks the Japanese troop transport Sagami Maru (7189 GRT) off Davao, Philippines in position 07º02'N, 125º33'E. (see map)
8 Nov 1942
USS Seawolf (Lt.Cdr. F.B. Warder) torpedoes and sinks Japanese auxiliary gunboat Keiko Maru (2929 GRT) off Cape San Augustin, Mindanao, Philippines in position 06º22'N, 126º03'E. (see map)
1 Dec 1942
USS Seawolf (Lt.Cdr. F.B. Warder) ended her 7th war patrol at Pearl Harbor. She is ordered to the Mare Island Navy Yard for an overhaul.
3 Apr 1943
With her overhaul completed USS Seawolf (Lt.Cdr. R.L. Gross) departs Pearl Harbor for her 8th war patrol. She is ordered to patrol of the Bonin Islands.
15 Apr 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks Japanese troop transport Kaihei Maru (4575 GRT) about 275 nautical miles south-southwest of Marcus Island in position 21º15'N, 152º00'E. (see map)
19 Apr 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes sinks Japanese depot ship Banshu Maru No.5 (389 GRT) off the Bonin Islands in position 26º15'N, 139º35'E. (see map)
23 Apr 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks the Japanese Patrol Boat No.39 off the east central coast of Formosa in position 23º45'N, 122º45'E. (see map)
3 May 1943
USS Seawolf (Lt.Cdr. R.L. Gross) ends her 8th war patrol at Midway.
17 May 1943
USS Seawolf (Lt.Cdr. R.L. Gross) departs Midway for her 9th war patrol. She is ordered to patrol in the East China Sea.
20 Jun 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks the Japanese merchant Shojin Maru (4739 GRT) in the Formosa Strait position 24º39'N, 118º58'E. (see map)
12 Jul 1943
USS Seawolf (Lt.Cdr. R.L. Gross) ends her 9th war patrol at Pearl Harbor.
14 Aug 1943
USS Seawolf (Lt.Cdr. R.L. Gross) departs Pearl Harbor for her 10th war patrol. Once again she was ordered to patrol in the East China Sea.
31 Aug 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and damages the Japanese torpedo boat Sagi (offsite link) and torpedoes and sinks the transport ship Shoto Maru (5253 GRT) and the Japanese merchant Kokko Maru (5486 GRT) in the East China Sea position 28º30'N, 123º05'E. (see map)
1 Sep 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and damages the Japanese transport ship Fusei Maru (2256 GRT) in the East China Sea about 105 nautical miles south-west of Fukue, Japan in position 31º28'N, 127º.24'E. She later finished off the damaged Japanese ship with gunfire. (see map)
15 Sep 1943
USS Seawolf (Lt.Cdr. R.L. Gross) ends her 10th war patrol when she returned to base.
5 Oct 1943
USS Seawolf (Lt.Cdr. R.L. Gross) left base for her 11th war patrol. She is ordered to patrol in the South China Sea.
29 Oct 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks the Japanese merchant Wuhu Maru (3222 GRT) off Swatow, China in position 22º28'N, 116º10'E. (see map)
4 Nov 1943
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks the Japanese merchant Kaifuku Maru (3177 GRT) about 90 nautical miles south-south-west of Hong Kong in position 21º22'N, 113º20'E. (see map)
9 Nov 1943
USS Seawolf (Lt.Cdr. R.L. Gross) unsuccessfully attacks the Japanese transport ship Hokuriku Maru (8359 GRT) in the Luzon Strait in position 20º38'N, 118º33'E. (see map)
27 Nov 1943
USS Seawolf (Lt.Cdr. R.L. Gross) ends her 11th war patrol at Pearl Harbor.
22 Dec 1943
USS Seawolf (Lt.Cdr. R.L. Gross) departs Pearl Harbor for her 12th war patrol. She is ordered to patrol in the East China Sea.
10 Jan 1944
While on patrol in the East China Sea west off Okinawa, USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks the Japanese transport ship Asuka Maru (7523 GRT) in position 27º30'N, 127º45'E and the Japanese merchant Getsuyo Maru (6440 GRT) in position 27º10'N, 127º28'E. (see map)
11 Jan 1944
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks the Japanese transport ship Yahiko Maru (5747 GRT) about 50 nautical miles north of Naha, Okinawa in position 27º10'N, 127º28'E. (see map)
14 Jan 1944
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and sinks the Japanese tanker Yamazuru Maru (3651 GRT) about 300 nautical miles north-east of Okinawa in position 25º00'N, 132º00'E. (see map)
16 Jan 1944
USS Seawolf (Lt.Cdr. R.L. Gross) torpedoes and damages the transport ship Tarushima Maru (4865 GRT) in the Philippine Sea in position 23º00'N, 135º00'E. USS Whale later finishes off the damages Japanese ship in position 22º50'N, 135º40'E. (see map)
27 Jan 1944
USS Seawolf (Lt.Cdr. R.L. Gross) ends her very succesful 12th war patrol at Pearl Harbor. She is ordered to the Hunters Point Navy Yard for an overhaul.
4 Jun 1944
With her overhaul completed USS Seawolf (Lt.Cdr. R.B. Lynch) left Pearl Harbor for her 13th war patrol. She was ordered to photograph Peleliu Island in the Palau Islands.
7 Jul 1944
USS Seawolf (Lt.Cdr. R.B. Lynch) ended her 13th war patrol at Pearl Harbor. She was now sent to Darwin, Australia. Her 14th war patrol was a special mission to Tawitawi in the Sulu Archipelago.
21 Sep 1944
USS Seawolf (Lt.Cdr. A.M. Bontier) left Brisbane for her 15th war patrol. She was ordered to transport stores and Army personnel to the east coast of Samar. Seawolf called at Manus on 29 September.
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