Allied Warships
Peto (SS-265)
Submarine of the Gato class

USS Peto being launched sideways on 30 April 1942.
| Navy | The US Navy |
| Type | Submarine |
| Class | Gato |
| Pennant | 265 |
| Built by | Manitowoc Shipbuilding Co. (Manitowoc, Wisconsin, U.S.A.) |
| Ordered | |
| Laid down | 18 Jun 1941 |
| Launched | 30 Apr 1942 |
| Commissioned | 21 Nov 1942 |
| End service | 1 Aug 1960 |
| Loss position | |
| History | Decommissioned 25 December 1942 and transported in a floating drydock to New Orleans, Louisiana. |
Commands listed for USS Peto (265)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | Lt.Cdr. William Thackeray Nelson, USN | 14 Mar 1943 | 22 Jan 1944 |
| 2 | Lt.Cdr. Paul van Leunen, USN | 22 Jan 1944 | 18 Jul 1944 |
| 3 | Robert Hugh Caldwell, Jr., USN | 18 Jul 1944 | 30 Aug 1945 |
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Noteable events involving Peto include:
14 Mar 1943
USS Peto (Lt Cmdr William Thackeray Nelson) arrives at Brisbane, Australia.
2 Apr 1943
USS Peto (Lt.Cdr. W.T. Nelson) departs Brisbane for her 1st war patrol. She is ordered to patrol in the Truk-Rabaul shipping lanes.
20 May 1943
USS Peto (Lt.Cdr. W.T. Nelson) ends her 1st war patrol at Brisbane.
10 Jun 1943
USS Peto (Lt.Cdr. W.T. Nelson) departs Brisbane for her 2nd war patrol. She is ordered to patrol in the Truk-Rabaul shipping lanes.
28 Jun 1943
USS Peto (Lt.Cdr. W.T. Nelson) torpedoes and sinks the Japanese hydrographic-meteorological research ship Tenkai (Maru) (359 GRT) between Truk and Rabaul in position 01º47'N, 151º46'E. (see map)
7 Jul 1943
USS Peto (Lt.Cdr. W.T. Nelson) torpedoes and damages the Japanese oiler Shinkoku Maru (10020 GRT) north-east of Manus in position 00º35'N, 148º00'E. (see map)
4 Aug 1943
USS Peto (Lt.Cdr. W.T. Nelson) ends her 2nd war patrol at Brisbane.
1 Sep 1943
USS Peto (Lt.Cdr. W.T. Nelson) departs Brisbane for her 3rd war patrol. She is ordered to patrol in the Caroline Islands area.
1 Oct 1943
USS Peto (Lt.Cdr. W.T. Nelson) torpedoes and sinks the Japanese troop transport Tonei Maru (4930 GRT) and the Japanese army cargo ship Kinkasan Maru (4980 GRT) south of the Caroline Islands in position 04º00'N, 143º50'E. (see map)
21 Oct 1943
USS Peto (Lt.Cdr. W.T. Nelson) ends her 3rd war patrol at Brisbane.
14 Nov 1943
USS Peto (Lt.Cdr. W.T. Nelson) departs Brisbane for her 4th war patrol. She is ordered to patrol between the Caroline Islands and New Guinea.
1 Dec 1943
USS Peto (Lt.Cdr. W.T. Nelson) torpedoes and sinks the Japanese troop transport Konei Maru (2345 GRT) north of Manus in position 01º16'N, 146º45'E. (see map)
7 Jan 1944
USS Peto (Lt.Cdr. W.T. Nelson) ends her 4th war patrol at Brisbane.
2 Feb 1944
USS Peto (Lt Cmdr Paul Van Leunen,Jr.) departs Brisbane for her 5th war patrol, and is ordered to patrol north of New Guinea.
27 Feb 1944
USS Peto (Lt Cmdr Paul Van Leunen,Jr.) calls at Langemak Bay, New Guinea to refuel and to make repairs.
1 Mar 1944
USS Peto (Lt.Cdr. P. Van Leunen, Jr.) departs Langemak Bay to resume her patrol.
4 Mar 1944
USS Peto (Lt.Cdr. P. Van Leunen, Jr.) torpedoes and sinks the Japanese army cargo ship Kayo Maru (4368 GRT) about 75 nautical miles west-north-west of Hollandia, New Guinea in position 01º28'S, 138º40'E. (see map)
25 Mar 1944
USS Peto (Lt Cmdr Paul Van Leunen,Jr.) calls at Midway.
29 Mar 1944
USS Peto (Lt.Cdr. P. Van Leunen, Jr.) ends her 5th war patrol at Pearl Harbor.
28 Apr 1944
USS Peto (Lt.Cdr. P. Van Leunen, Jr.) departs Pearl Harbor for her 6th war patrol. She is ordered to patrol south of Formosa.
2 May 1944
USS Peto (Lt Cmdr Paul Van Leunen,Jr.) refuels at Midway.
15 Jun 1944
USS Peto (Lt Cmdr Paul Van Leunen, Jr.) calls at Midway.
19 Jun 1944
USS Peto (Lt Cmdr Paul Van Leunen, Jr.) ends her 6th war patrol at Pearl Harbor.
21 Jun 1944
USS Peto departs Pearl Harbor bound for San Francisco for a major overhaul at the Bethlehem Steel Company.
29 Sep 1944
With her overhaul completed USS Peto (Lt Cmdr Robert Hugh Caldwell, Jr.) departs the US west coast bound for Pearl Harbor.
7 Oct 1944
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) arrives at Pearl Harbor.
27 Oct 1944
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) departs Midway for her 7th war patrol. She is ordered to patrol in the Yellow Sea.
12 Nov 1944
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) torpedoes and sinks the Japanese army cargo ship Tatsuraku Maru (2746 GRT) in the East China Sea in position 31º18'N, 125º30'E. (see map)
18 Nov 1944
While operating in the East China Sea west of Saishu Island USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) torpedoes and sinks the Japanese army cargo ships Aisakasan Maru (6923 GRT) in position 33º50'N, 124º44'E and Chinkai Maru (2827 GRT) in position 33º39'N, 124º26'E. (see map)
6 Dec 1944
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) ends her 7th war patrol at Guam.
2 Jan 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) arrives at Pearl Harbor.
31 Jan 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) departs Pearl Harbor for her 8th war patrol. She is ordered to patrol in Japanese home waters.
12 Feb 1945
USS Peto (Lt Cmdr Robert Hugh Caldwell, Jr.) refuels at Saipan.
9 Apr 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) ends her 8th war patrol at Midway.
4 May 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) departs Midway for her 9th war patrol. She is ordered to patrol off Marcus Island.
19 Jun 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) ends her 9th war patrol at Guam.
14 Jul 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) departs Guam for her 10th war patrol. She is ordered to patrol south of Honshu in Japanese home waters.
25 Jul 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) sinks a Japanese sampam with gunfire south of Honshu in position 34º23'N, 137º25'E. (see map)
15 Sep 1945
USS Peto (Lt.Cdr. R.H. Caldwell, Jr.) arrives off the Panama Canal and ends her 10th war patrol.
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