Allied Warships
Harder (SS-257)
Submarine of the Gato class

USS Harder leaving the Mare Island Navy Yard after a refit on 19 February 1944.
| Navy | The US Navy |
| Type | Submarine |
| Class | Gato |
| Pennant | 257 |
| Built by | Electric Boat Co. (Groton, Connecticut, U.S.A.) |
| Ordered | |
| Laid down | 1 Dec 1941 |
| Launched | 19 Aug 1942 |
| Commissioned | 2 Sep 1942 |
| Lost | 24 Aug 1944 |
| Loss position | 15.50N, 119.43E (See a map) |
| History | USS Harder (Cdr. Samuel David Dealey, USN) is sunk by the Japanese corvette Kaibokan No.22 (offsite link) off the west coast of Luzon, Philippines in position 15º50'N, 119º43'E, there were no survivors. Cdr. S.D. Dealey was posthumously awarded the Medal of Honor. |
Commands listed for USS Harder (257)
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| Commander | From | To | |
| 1 | Cdr. Samuel David Dealey, USN | 2 Dec 1942 | 24 Aug 1944 (+) |
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Noteable events involving Harder include:
7 Jun 1943
USS Harder (Cdr. S.D. Dealey) departs Pearl Harbor for her 1st war patrol. She is ordered to patrol off Honshu, Japan.
21 Jun 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and damages the Japanese oiler Kyoei Maru No.3 (1189 GRT) east of Daiozaki, Japan, in position 34º30'N, 137º32'E. (see map)
23 Jun 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and damages the Japanese seaplane carrier Sagara Maru (offsite link) (7189 GRT) off southern Honshu in position 33º45'N, 138º10'E. The Sagara Muru is beached and finally destroyed on 4 July 1943 by the USS Pompano. (see map)
7 Jul 1943
USS Harder (Cdr. S.D. Dealey) ends her 1st war patrol at Midway.
24 Aug 1943
USS Harder (Cdr. S.D. Dealey) departs Pearl Harbor for her 2nd war patrol. Once again she is ordered to patrol off Honshu, Japan.
9 Sep 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese merchant cargo ship Koyo Maru (3010 GRT) off the south coast of Honshu, Japan in position 35º30'N, 140º40'E. (see map)
11 Sep 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese troop transport Yoko Maru (1050 GRT) south of Mikura Island, Japan in position 33º48'N, 139º37'E. (see map)
19 Sep 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese merchant cargo ship Kachisan Maru (814 GRT) off the south coast of Honshu, Japan in position 33º25'N, 135º38'E. (see map)
22 Sep 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese merchant tanker Daishin Maru (5957 GRT) and the Japanese army cargo ship Kowa Maru (4520 GRT) off the south coast of Honshu, Japan in position 34º46'N, 140º55'E. (see map)
30 Sep 1943
USS Harder (Cdr. S.D. Dealey) sinks the Japanese trawler Shosei Maru No.3 with gunfire in the North Pacific in position 34º10'N, 150º45'E. (see map)
8 Oct 1943
USS Harder (Cdr. S.D. Dealey) ends her 2nd war patrol at Pearl Harbor.
30 Oct 1943
USS Harder (Cdr. S.D. Dealey) departs Pearl Harbor for her 3rd war patrol. She is ordered to patrol in the Mariana Islands area.
12 Nov 1943
USS Harder (Cdr. S.D. Dealey) sinks the Japanese auxiliary minesweeper Misago Maru No.11 and damages the Japanese motor sailing vessel Hei Maru with gunfire off the Mariana's in position 21º40'N, 144º40'E. (see map)
19 Nov 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese troop transports Hokko Maru (5385 GRT) and Udo Maru (3936 GRT) north-east of the Marianas in position 22º28'N, 147º22'E. (see map)
20 Nov 1943
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese troop transport Nikko Maru (5949 GRT) north-east of the Marianas, in position 23º20'N, 147º30'E. (see map)
30 Nov 1943
USS Harder (Cdr. S.D. Dealey) ends her 3rd war patrol at Pearl Harbor. She is now sent to the Mare Island Navy Yard for a major overhaul.
27 Feb 1944
With her overhaul completed USS Harder (Cdr. S.D. Dealey) arrived back at Pearl Harbor.
16 Mar 1944
USS Harder (Cdr. S.D. Dealey) departs Pearl Harbor for her 4th war patrol. She is ordered to patrol in the Caroline Islands area.
13 Apr 1944
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese destroyer Ikazuchi (1980 tons, offsite link) some 180 nautical miles south-south-west of Guam in position 10º13'N, 143º51'E. (see map)
17 Apr 1944
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese army cargo ship Matsue Maru (7061 GRT) about 150 nautical miles north-west of Woleai, Caroline Islands in position 09º30'N, 142º35'E. (see map)
3 May 1944
USS Harder (Cdr. S.D. Dealey) ends her 4th war patrol at Fremantle, Australia.
26 May 1944
USS Harder (Cdr. S.D. Dealey) departs Fremantle for her 5th war patrol. She is ordered to patrol in the Celebes Sea.
6 Jun 1944
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese destroyer Minazuki (1500 tons, offsite link) some 120 nautical miles east-north-east of Tarakan, Borneo in position 04º05'N, 119º30'E. (see map)
7 Jun 1944
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese destroyer Hayanami (2080 tons, offsite link) south-east of the Sibitu Passage, Borneo in position 04º43'N, 120º03'E. (see map)
8 Jun 1944
USS Harder (Cdr. S.D. Dealey) evacuates 6 British coast-watchers from northeast coast of North Borneo.
9 Jun 1944
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese destroyer Tanikaze (2035 tons, offsite link) in the Sibitu Passage about 90 nautical miles south-west of Basilan Island in position 05º42'N, 120º41'E. (see map)
21 Jun 1944
USS Harder (Cdr. S.D. Dealey) enters Darwin, Australia for fuel and torpedo's and then resumes her 5th war patrol. She now went to the Flores Sea.
3 Jul 1944
USS Harder (Cdr. S.D. Dealey) ends her 5th war patrol at Darwin.
5 Aug 1944
USS Harder (Cdr. S.D. Dealey) departs Fremantle for her 6th war patrol. She was ordered to patrol in the South China Sea east of Luzon, Philippines.
22 Aug 1944
USS Harder (Cdr. S.D. Dealey) torpedoes and sinks the Japanese escort vessels Matsuwa (870 tons) and Hiburi (940 tons, both offsite links) about 50 nautical miles west-south-west of Manila in position 14º15'N, 120º05'E. (see map)
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