Peter Robert Helfrich Harrison DSC, DSO, RN
| Birth details unknown |
 | Ranks
Retired: 24 Nov 1958 Decorations
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Warship Commands listed for Peter Robert Helfrich Harrison, RN
| Ship | Rank | Type | From | To |
| HMS H 50 (N 50) | Lt. | Submarine | 1 Mar 1941 | 26 Apr 1941 |
| HMS Ultimatum (P 34) | Lt. | Submarine | 12 Jun 1941 | 12 Nov 1942 |
| HMS Upright (N 89) | Lt. | Submarine | 26 Jan 1943 | 7 Jun 1943 |
| HMS Tiptoe (P 332) | Lt.Cdr. | Submarine | 15 Apr 1944 | 24 Apr 1945 |
Career information
We currently have no career / biographical information on this officer.
Events related to this officer
Submarine HMS Ultimatum (P 34)
25 Jan 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) torpedoes and sinks the Italian passenger ship Dalmatia L. (3352 GRT) south-west of Capo dell'Armi in position 37º45'N, 15º30'E.
23 Feb 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) fires 4 torpedoes against the Italian merchants Ravello (6142 GRT) and Unione (6070 GRT) about 80 nautical miles east of Tripoli, Libya in position 32º48'N, 14º50'E. All torpedoes fired missed their targets.
14 Mar 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) torpedoes and sinks the Italian submarine Ammiraglio Millo (offsite link) in the Ionian Sea off Punta (Cape) Stilo, Calabria, Italy in position 38º27'N, 16º37'E.
24 Jun 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) makes a torpedo attack on the German submarine U-77 south of Crete in position 34º20'N, 24º09'E. All torpedoes fired however missed their target.
7 Sep 1942
HMS P 34 (Lt. P.R.H. Harrison, DSC, RN) fires four torpedoes against the Italian merchant Luciano Manara (6060 GRT) in the central Mediterranean about 45 nautical miles south-west of Schiza Island, Greece in position 36º17'N, 21º03'E. All torpedoes fired missed their target.