Matthew Kevin Byrne – Merchant Navy, S.S. Sheaf Mead

Sailor Matthew Kevin Byrne – Merchant Navy, S.S. Sheaf Mead

Early Life

Matthew Kevin Byrne was born in 1911 in Wexford, Ireland. No surviving census entries or 1939 Register records have been located for him, suggesting that he may have been at sea from an early age or living in circumstances not captured by official documentation. At the time of his service, his home address was recorded as 1200 Neath Road, Swansea, indicating that he had settled in South Wales.

Service in the Merchant Navy

Matthew served with the Merchant Navy, holding the rating of Sailor, a vital role involving general seamanship, maintenance, and assisting with the safe operation of the vessel. Like many merchant seafarers of the period, he faced the constant dangers of U‑boat attacks in the Atlantic approaches.

The S.S. Sheaf Mead

S.S. Sheaf Mead
credit - wrecksite 

Matthew served aboard the S.S. Sheaf Mead, a 5,008‑ton British steam cargo vessel built in 1924 by Robert Duncan & Co. of Port Glasgow as the Gretaston. Operated by the Sheaf Steam Shipping Co. Ltd., Newcastle‑upon‑Tyne, the ship carried essential wartime cargoes such as coal, grain, and general supplies—lifelines for Britain during the early years of the Second World War. Like many merchant ships at the time, she often sailed unescorted, leaving her highly vulnerable to German U‑boats.

U‑37 – The Attacking Submarine

The submarine responsible for sinking the Sheaf Mead was U‑37, a German Type IXA U‑boat commissioned in 1938. One of the most successful submarines of the early Battle of the Atlantic, U‑37 sank more than 200,000 tons of Allied shipping between 1939 and 1941. During the attack on the Sheaf Mead, she was commanded by Kapitänleutnant Victor Oehrn. After her early successes, U‑37 was reassigned as a training vessel from 1941 and was eventually scuttled in May 1945 to prevent capture.

Final Voyage and Sinking – 27^th May 1940

On 27^th May 1940, the Sheaf Mead was sailing unescorted and in ballast from Swansea to Philadelphia when she was intercepted by U‑37. At 15:51 hours, a torpedo struck the stern of the vessel, and minutes later a boiler explosion caused her to capsize and sink rapidly. The attack occurred approximately 180 miles off Cape Finisterre, resulting in the deaths of the master, 30 crew members, and one DEMS gunner, with only five survivors rescued. Among those lost was Sailor Matthew Kevin Byrne, and as with many wartime sinkings in open waters, no remains were ever recovered.

Death and Commemoration

Merchant Seamen Deaths

Matthew Kevin Byrne
Tower Hill Memorial, London
credit - Benjidog Historical Research Resources:
The Merchant Navy Memorial

According to the Merchant Seamen Deaths register, Sailor Matthew Kevin Byrne lost his life on 27^th May 1940 when the Sheaf Mead was sunk. As he has no known grave, his name is commemorated on the Tower Hill Memorial, London, where he is remembered alongside his shipmates and thousands of other merchant seafarers who gave their lives during both world wars