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Notable events involving LST 421 include:

6 Feb 1945

Combined convoy ON 283 / OS 109 / KMS 83.

The Channel section of this combined convoy sailed on 5 February 1945 from Southend.

This section was made up of the following merchant vessels;
Bertram G. Goodhue (American, 7247 GRT, built 1944), Briarwood (British, 4019 GRT, built 1930), Elijah Cobb (American, 7176 GRT, built 1944), Empire Canning (British, 6997 GRT, built 1944), Empire Caxton (British, 2873 GRT, built 1942), English Prince (British, 7275 GRT, built 1943), Fort Musquarro (British, 7130 GRT, built 1944), Henry L. Benning (American, 7200 GRT, built 1943), Irving Babbitt (American, 7247 GRT, built 1944), Isipingo (British, 7069 GRT, built 1930), James D. Trask (American, 7210 GRT, built 1944), Jenny (Norwegian, 4706 GRT, built 1928), La Pampa (British, 4149 GRT, built 1938), Louis Bamberger (American, 7240 GRT, built 1944), Stephen W. Kearny (American, 7176 GRT, built 1943) and Rigoletto (Swedish, 2465 GRT, built 1923).

This section was later joined by the merchant vessel Empire Ganges (British (tanker), 3744 GRT, built 1944) coming from Cowes roads, Joshua L. Chamberlain (American, 7176 GRT, built 1943) coming from St. Helens Roads, President de Vogue (Norwegian (tanker), 9320 GRT, built 1935) (also to serve as escort oiler) and Alfred I. DuPont (American, 7240 GRT, built 1944) coming from Plymouth. Also joining later were the landing ship HMS LST 368 (T/A/Lt.Cdr. J Livingston, RNR) which came from Portsmouth and the landing ships HMS LST 410 (T/A/Lt.Cdr. C.C. Page, RNR), HMS LST 413 (T/A/Lt.Cdr. R.L. Phillips, RNR), HMS LST 427 (T/A/Lt.Cdr. V. Elsom, RNR) and HMS LST 538 (T/A/Lt.Cdr. W.D.W. Wright, RNR) which joined coming from Falmouth as did the USN tugs USS Owl (Lt.(jg) J.H. Thomas, USNR) and USS Cormorant (T/Lt. W.T. Davern, USN).

On departure from Southend they were escorted by the destroyer HMS Vimy (Lt.Cdr. K.H.J.L. Phibbs, RN) and the corvette HMS Loosestrife (Lt. W. Atkinson, RNR).

Around 0430A/7, the corvettes HMS Alisma (Lt. G. Lanning, RANVR), HMS Delphinium (T/A/Lt.Cdr. S. Rule, RNVR) and HMS Stonecrop (T/A/Lt.Cdr. P.N.F. Appleyard, RNVR) joined off Portland. They came from Plymouth which they had departed on 6 February.

On reaching position 180° - Bishops Rock - 8 nautical miles the convoy split into convoy ONA 283 and OS 109 / KMS 83.

ONA 283 (the Channel section of convoy ON 283) was made up by the following merchant vessels;
Alfred I. DuPont, Bertram G. Goodhue, Elijah Cobb, Empire Canning, Fort Musquarro, Henry L. Benning, Irving Babbitt, James D. Trask, Joshua L. Chamberlain, La Pampa, Louis Bamberger and Stephen W. Kearny. They were escorted by HMS Vimy, HMS Loosestrife and HMS Stonecrop and this section was to make rendezvous with the Irish Sea section of Convoy ON 283 (ONB 283) in position 50°00'N, 10°00'W. The escorts of ONA 283 were then to part company and join convoy HX 335.

The Channel section of the combined convoy OS 109 / KMS 83 was made up of the following merchant vessels;
Briarwood, Empire Caxton, Empire Ganges, English Prince, Isipingo, Jenny and Rigoletto. They were escorted by HMS Alisma and HMS Delphinium and were to make rendezvous with the Irish Sea section of this combined convoy in position 50°24'N, 08°02'W. These two corvettes were to join convoy MKS 81 later.

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The Irish Sea section of this convoy was made up of three sections, from the Clyde, Liverpool and Milford Haven.

The Clyde section of this combined convoy sailed on 6 February 1945.

This section was made up of the following merchant vessels;
Amastra (British (tanker), 8031 GRT, built 1935), Boreas (Norwegian, 2801 GRT, built 1920), Empire Addison (British, 7010 GRT, built 1942), Empire Industry (British (tanker), 8203 GRT, built 1943), Fort Frederick (British, 7135 GRT, built 1942), King James (British, 5122 GRT, built 1925), Macharda (British, 7998 GRT, built 1938), Nyhorn (Norwegian, 4494 GRT, built 1929) and Pozarica (Italian (tanker), 7799 GRT, built 1940).

The MAC ship (Merchantile Aircraft Carrier) Empire MacMahon (British (tanker), 8856 GRT, built 1943), rescue ship Empire Rest (British, 1333 GRT, built 1944) and ecort oiler British Energy (British (tanker), 7209 GRT, built 1931) (she came from Londonderry which she had departed on 6 February) were also part of this section.

The submarine HrMs O 24 (Lt.Cdr. P.J.S. de Jong, RNN) and landing ship HMS LST 421 (T/A/Lt.Cdr. T.F. Penney, RNR) were also part of this section.

The Clyde section was later joined by the merchant vessel Empire Spey (British, 4292 GRT, built 1929) coming from Belfast.

The Amastra however soon had to return to the Clyde due to engine defects. She arrived there later on the 6th.

On departure from the Clyde they were escorted by the frigates HMCS Lanark (A/Cdr. B.D.L. Johnson, OBE, RCNR) and Hawkesbury (Lt.Cdr. H.J. Weston, RANR(S)). The corvette HMCS Owen Sound (T/A/Lt.Cdr. J.M. Watson, RCNR) joined coming from Londonderry

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The Liverpool section of this combined convoy sailed on 6 February 1945.

This section was made up of the following merchant vessels;
Backhuysen (Dutch (tanker), 8194 GRT, built 1942), Balteako (British, 1328 GRT, built 1920), Emma Bakke (Norwegian, 4721 GRT, built 1929), Empire Ortolan (British, 4970 GRT, built 1919), Gdynia (Swedish, 1636 GRT, built 1934), Inchanga (British, 7069 GRT, built 1934), James Whitcomb Riley (American, 7176 GRT, built 1942), John T. Holt (American, 7176 GRT, built 1943), Lalande (British, 7453 GRT, built 1920), Macuba (Dutch (tanker), 8249 GRT, built 1931), Manchester Progress (British, 5620 GRT, built 1938), Marija Petrinovic (Yugoslavian, 5684 GRT, built 1918), Morris Hillquit (American, 7210 GRT, 1944), New Brooklyn (British, 6546 GRT, built 1920), Niso (British (tanker), 8273 GRT, 1944), Port Halifax (British, 5820 GRT, built 1937), Prometheus (British, 6095 GRT, built 1925), Thomas B. King (American, 7198 GRT, built 1942), Thomas J. Lyons (American, 7240 GRT, built 1944), Thomas Stone (American, 7191 GRT, built 1942), W.S. Jennings (American, 7240 GRT, built 1944) and Zane Grey (American, 7176 GRT, built 1943).

On departure from Liverpool they were escorted by the sloop HMS Wren (Cdr. S.R.J. Woods, DSC, RD, RNR) and the corvettes HMS Oakham Castle (T/A/Lt.Cdr. A.H. Lyons, RNVR) and HMS Aubretia (A/Lt.Cdr. G.D. Fowler, RNR).

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The Milford Haven section of this combined convoy sailed on 7 February 1945. Some ships joined coming directly from the Bristol Channel.

This section was made up of the following merchant vessels;
A.J. Cermak (American, 7176 GRT, built 1943), Abraham Rosenberg (American, 7176 GRT, built 1944), Arthur R. Lewis (American, 7240 GRT, built 1944), Cavina (British, 6907 GRT, 1924), Celtic Monarch (British, 5824 GRT, built 1929), David G. Burnet (American, 7244 GRT, built 1943), Edmond Mallet (American, 7176 GRT, built 1944), Edward G. Janeway (American, 7247 GRT, built 1944), Empire Galahead (British, 7046 GRT, built 1942), Empire Pennant (British, 7043 GRT, built 1942), F. Southall Farrar (American, 7200 GRT, built 1944), Fort Romaine (British, 7131 GRT, built 1943), Henry D. Lindsley (American, 7247 GRT, built 1944), Hugh M. Smith (American, 7176 GRT, built 1943), Isaac Mayer Wise (American, 7240 GRT, built 1944), Ivan Topic (Yugoslavian, 4943 GRT, built 1920), James B. Miller (American, 7176 GRT, built 1943), Jesse H. Metcalf (American, 7176 GRT, built 1944), K.I. Luckenbach (American, 7822 GRT, built 1918), Kaia Knudsen (Norwegian (tanker), 9063 GRT, built 1931) (also to serve as escort oiler), Kelmscott (British, 7053 GRT, built 1943), Minor C. Keith (American, 7247 GRT, built 1944), North King (Panamanian, 4934 GRT, built 1903), Taron (British (tanker), 8054 GRT, built 1936), Ward Hunt (American, 7191 GRT, built 1943) and William Windom (American, 7194 GRT, built 1943).

The RFA tanker Distol (1174 GRT, built 1916) was also part of this convoy.

On departure from Milford Haven they were escorted by the A/S trawler HMS Huddersfield Town (Skr. C.B. Scott, RNR) and the A/S whaler HMS Southern Breeze (A/Skr.Lt. W.S. Flowers, RNR).

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Early on 7 February, Force 36 supported the Irish Sea section of the combined convoy. Force 36 was made up of the frigates HMS Bligh (T/Lt. W.B. de Quincey, RNVR), HMS Grindall (T/A/Lt.Cdr. D. Turquand-Young, RNVR, with the Commanding Officer of the 5th Escort Group, Cdr. B.W. Taylor, RN, on board), HMS Keats (T/A/Lt.Cdr. N.F. Israel, DSC, RNR), HMS Kempthorne (Lt. H.J.A. Wilson, RN) and HMS Tyler (A/Lt.Cdr. C.H. Ranking, RN).

Around 0300A/7, the Clyde and Liverpool sections joined company.

Around 0900A/7, the frigate HMCS St. Therese (T/Cdr. J.E. Mitchell, RCNVR) joined coming from Londonderry.

Around 0930A/7, Force 33 joined as temporary reinforcements. Force 33 was made up of the sloop HMS Wild Goose (Cdr. D.E.G. Wemyss, DSO, DSC and Bar, RN) and the frigates HMS Dominica (Lt.Cdr. H.N. Lawson, RD, RNR), HMS Labuan (T/A/Lt.Cdr. V.D.H. Bidwell, DSC, RNR), HMS Tobago (T/A/Lt.Cdr. J.H.L. May, OBE, RNVR), HMS Loch Fada (Cdr. B.A. Rogers, RD, RNR) and HMS Loch Ruthven (A/Lt.Cdr. R.T. Horan, RNR).

Around 1000A/7, Force 36 (5th Escort Group), parted company.

Around 1600A/7, the corvette HMCS Copper Cliff (T/Lt.Cdr. F.G. Hutchings, RCNR) joined coming from Milford Haven.

Around 1800A/7, the Milford Haven section joined the Clyde / Liverpool sections. Both escorts of this section did not join the combined convoy.

Around 1900A/7, Force 33 (2nd Escort Group) parted company. [sources are conflicting, one source states that HMS Wild Goose, HMS Labuan and HMS Loch Fada remained with the convoy during the night of 7/8 February.

Around 1900A/7, the combined convoy split but the combined convoy OS 109 / KMS 83 remained in rather close company trailing behind convoy ON 283 during the night until turning southwards around 0700A/8.

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Convoy ON 283 was made up of the following merchant vessels;
A.J. Cermak, Abraham Rosenberg, Arthur R. Lewis, Backhuysen, British Energy (escort oiler), Cavina, David G. Burnet, Edmond Mallet, Edward G. Janeway, Emma Bakke, Empire Industry, Empire MacMahon (MAC ship), Empire Rest (rescue ship), F. Southall Farrar, Fort Romaine, Gdynia, Henry D. Lindsley, Hugh M. Smith, Isaac Mayer Wise, James B. Miller, James Whitcomb Riley, Jesse H. Metcalf, John T. Holt, K.I. Luckenbach, Kaia Knudsen (escort oiler), Kelmscott, Macuba, Manchester Progress, Marija Petrinovic, Minor C. Keith, Morris Hillquit, Niso, North King, Nyhorn, Port Halifax, Prometheus, Taros, Thomas B. King, Thomas J. Lyons, Thomas Stone, W.S. Jennings, Ward Hunt, William Windon and Zane Grey.

They were escorted by HMCS Lanark, HMS Hawkesbury, HMCS St. Therese, HMCS Copper Cliff and HMCS Owen Sound.

Around 1500A/9 the Channel section of the convoy joined company [for it's composition see above]. HMS Vimy, HMS Loosestrife and HMS Stonecrop then parted company.

Around 1200 hours on 10 December, in position 48°46'N, 12°35'W, HMCS St. Therese parted company to proceed to St. John's, Newfoundland where she arrived on 17 February.

On 13 February the USN tugs and the escorts fuelled from the British Energy and the President de Vogue. Also on this day the corvette HMCS Merrittonia (T/Lt. F.K. Ellis, RCNVR) joined the convoy. She had departed St. John's, Newfoundland on 7 February.

Around 1230 hours on 14 February [time zone not given] the Taron dropped out of the convoy with engine trouble. She rejoined the next day around 1830 hours.

On 15 February HMCS Merrittonia fuelled from the Kaia Knudsen.

At 0748 hours on the 18th, an SOS was received from the Alfred I. DuPont which was already struggling since the 14th with the heavy weather conditions the convoy encountered. She detached from the convoy and was able to reach the Azores on 20 February.

Also USS Cormorant had two holds flooded and HMCS Merrittonia was ordered to stand by the tug but the flooding was brought under control.

At 1620 hours on 18 February the Niso was detached to proceed independently to New Orleans (Good Hope) where she arrived on 4 March.

Around 1100 hours on 21 February, in position 44°46'N, 47°40'W, the current escort, minus HMCS Owen Sound parted company with the convoy to proceed to St. John's, Newfoundland where they arrived on 22 February. At the same time a new escort joined which had departed St. John's on 20 February. This new escort was made up of the minesweeper HMCS Kapuskasing (A/Lt.Cdr. A.H. Rankin, OBE, RCNVR), corvettes HMCS Barrie (T/Lt. W.D. Stokvis, RCNVR), HMCS Buctouche (T/Skr.Lt. H.E. Young, RCNR), HMCS Sherbrooke (T/Lt. D.A. Binmore, RCNVR) and HMCS Vancouver (T/Lt. G.C. Campbell, RCNVR).

On 22 February the Kelmscott was detached to St. John's where she arrived the following day.

At 1740 hours on 23 February the following merchant vessels were detached to Halifax;
British Energy, Cavina, Empire MacMahon, Empire Rest, Manchester Progress and Nyhorn. HMCS Owen Sound went with them as escort.

On 25 February the Fort Musquarro was ordered to proceed independently to Baltimore and the Thomas Stone was ordered to proceed independently to Philadelphia.

On 26 February the following ships were detached to Boston (via the Cape Cod Canal) where they arrived the following day;
David G. Burnet, Edmond Mallet, Elijah Cobb, Henry L. Benning, Hugh M. Smith and Jesse H. Metcalf.

Also the Empire Industy was ordered to proceed to Baltimore.

The remainder of the convoy arrived at New York on 27 February.

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The combined convoy OS 109 / KMS 83 was made up of the following merchant vessels;
Balteako, Boreas, Celtic Monarch, Distol, Empire Addison, Empire Galahad, Empire Pennant, Empire Spey, Fort Frederick, Ivan Topic, King James, Macharda, New Brooklyn, Pozarica, HrMs O 24 and HMS LST 421. They were escorted by HMS Wren, HMS Oakham Castle and HMS Aubretia.

Around 1700A/8, the Channel section of the convoy joined company. [for it's composition see above]. Their escorts, HMS Alisma and HMS Delphinium also joined the convoy.

Around 1430A/9, HMS Wren was detached to return to Liverpool and HMS Alisma, HMS Aubretia and HMS Delphinium were to join convoy MKS 81 and had already parted company A.M. on the 9th.

Around 1800A/9, in position 48°00'N, 08°30'W, the ships belonging to convoy OS 109 were detached. They were to proceed independently to their destinations. This were the following merchant vessels; Briarwood (arrived at Dakar on 20 February), Celtic Monarch (arrived at Freetown on 23 February), Empire Galahad (arrived at Buenos Aires on 5 March), Empire Pennant (arrived at Montevideo on 5 March), Isipingo (arrived at Takoradi on 23 February), Ivan Topic (arrived at Dakar on 20 February), Jenny (arrived at Freetown on 21 February but made a short stop at Dakar to land an injured crew member on 19 February) and New Brooklyn (arrived at Takoradi on 26 February).

The Rigotello (arrived at Freetown on 21 February) parted company on the 10th.

Convoy KMS 83 continued towards Gibraltar with the remaining vessels escorted by HMS Oakham Castle.

Around 0800Z/13, in position 42°17'N, 13°36'W, the patrol vessels HMS Kilmelford (Lt. W. Harold, RNZNVR) and HMS Kilmington (T/Lt. D.D. Humphreys, RNVR) joined.

Around 0800Z/14, in position 39°00'N, 13°29'W, the frigate HMS Ballinderry (Lt.Cdr. E.F. Aikman, RNR) joined.

The convoy arrived at Gibraltar on 16 February but some of the merchant vessels immediately proceeded into the Mediterranean to continue their voyage independently and unescorted. (1)