Allied Warships

HMS Louis (K 515)

Frigate of the Captain class

NavyThe Royal Navy
PennantK 515 
Built byBoston Navy Yard (Boston, Massachusetts, U.S.A.) 
Laid down9 Jul 1943 
Launched13 Aug 1943 
Commissioned9 Nov 1943 
End service 

Assigned USN penant DE 517 but not named.

Returned to the USN on 20 March 1946. Scrapped.

Former nameDE 517

Commands listed for HMS Louis (K 515)

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1A/Lt.Cdr. Robert Johnston, RNR9 Nov 19437 May 1944
2Cdr. (retired) Lewis Bernard Alexander Majendie, RN7 May 19444 Mar 1945
3A/Lt.Cdr. John Humphrey Michael Sowry, RNVR4 Mar 1945???
4A/Cdr. Wilfred Lambert, RNVR???Oct 1945 ?

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Notable events involving Louis include:

7 Mar 1944
HrMs O 9 (Lt. J.B.M.J. Maas, RNN) participated in A/S exercises off Lough Foyle together with HMS Louis (A/Lt.Cdr. R. Johnston, RNR), HMCS Waskesiu (Lt.Cdr. J.P. Fraser, RCNR), HMCS Rimouski (T/Lt. R.J. Pickford, RCNVR) and HMCS Snowberry (T/Lt. J.A. Dunn, RCNVR). (1)

9 Mar 1944
HMS H 34 (Lt. R.L. Jay, RN) conducted A/S exercises off Lough Foyle with HMS Louis (A/Lt.Cdr. R. Johnston, RNR). In the afternoon exercises were sheduled with aircraft but these had to be cancelled due to the weather conditions. (2)

14 Mar 1944
HrMs O 9 (Lt. J.B.M.J. Maas, RNN) participated in A/S exercises off Lough Foyle together with HMS Tavy (T/A/Lt.Cdr. F. Ardern, RNR), HMS Swale (Lt.Cdr. J. Jackson, DSC, RNR), HMS Starwort (Lt. A.H. Kent, RNR), HMS Geranium (T/Lt. G. Wallace, RNR), HMS Londonderry (Lt.Cdr. L.B. Philpott, DSC, RD, RNR), HMS Louis (A/Lt.Cdr. R. Johnston, RNR), HMS Anguilla (T/A/Lt.Cdr. C. Morrison-Payne, RNVR) and HMS Petunia (Lt. R.M. Roberts, RNR). (1)

24 Aug 1944
German U-boat U-445 in the Bay of Biscay west of St. Nazaire, France, in position 47°21'N, 05°50'W, by depth charges from the British frigate HMS Louis (A/Cdr. L.B.A. Majendie, RN (retired)).

Media links

The Captain Class Frigates in the Second World War

Collingwood, Donald


  1. File (Dutch Archives, The Hague, Netherlands)
  2. ADM 173/18493

ADM numbers indicate documents at the British National Archives at Kew, London.

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