Thomas Jones – Mercantile Marine - S.S. Boscastle

First Engineer Thomas Jones – Mercantile Marine, S.S. Boscastle

Early Life and Family

1881 Census

Thomas Jones
was born in 1863, in Skewen, Neath, the son of Philip and Elizabeth Jones. By the time of the 1881 Census, the family were living at 130 Foxhole Road, Coedfrank, near Neath.

His father, Philip Jones, then aged 51, was employed as an Engine Fitter, a skilled occupation that supported the heavy industries and shipping of South Wales. His mother, Elizabeth, was 47 years old, and their son Thomas, aged 18, was already following in his father’s trade as an Engine Fitter.

In 1911, Thomas married Lily M. McNamara, and the couple settled at 147 St. Helens Avenue, Swansea. With his background in engineering, Thomas found employment in the Mercantile Marine, where men of his experience were in high demand to serve aboard Britain’s merchant steamers.

Service and Loss

During the First World War, Thomas Jones served as First Engineer aboard the S.S. Boscastle, a British merchant steamer engaged in transporting essential wartime supplies, including coal and general cargo, across the coastal and Channel routes.

On 7th April 1918, while sailing off the Pembrokeshire coast, the Boscastle was torpedoed without warning by a German submarine. The explosion was devastating, and the vessel sank rapidly in the cold waters of the St George’s Channel, resulting in the deaths of 18 crew members, including Thomas Jones.

His body was never recovered, and like so many merchant mariners of the First World War, his grave is the sea.

The S.S. Boscastle

The S.S. Boscastle was a British steam cargo vessel of 2,346 gross register tons, built for E. Jenkins & Co. of Cardiff. The vessel was part of the South Wales coal fleet, operating between British and continental ports during a time of growing danger from enemy submarines.

On 7th April 1918, while steaming approximately 14 nautical miles north-north-west of Strumble Head, Pembrokeshire, the Boscastle was torpedoed and sunk by the German submarine SM U-111. The attack occurred during the submarine’s first operational patrol in British waters. The ship was struck amidships, causing catastrophic damage, and sank within minutes.

Of the crew aboard, 18 men were lost, including First Engineer Thomas Jones. The wreck of the Boscastle now lies off the Pembrokeshire coast, serving as a stark reminder of the dangers faced by merchant seamen even in home waters during the Great War.

The German Submarine SM U-111

The SM U-111 was a Type U 51 class submarine of the Imperial German Navy, launched in 1917 and commissioned in early 1918. Measuring 65 metres in length and displacing approximately 715 tons surfaced and 900 tons submerged, she was equipped with four torpedo tubes and an 88 mm deck gun.

Operating in the Irish Sea and St George’s Channel, U-111 was tasked with targeting Allied shipping and disrupting Britain’s vital supply routes. On 7th April 1918, during her first patrol, she launched a torpedo attack that sank the S.S. Boscastle.

Following the Armistice, U-111 was surrendered to the Allies and transferred to the United States Navy for evaluation and testing. She was later used for naval trials before being scuttled in 1922 off the U.S. coast. Her remains were rediscovered decades later, providing a tangible link to the early history of submarine warfare.

The brief but destructive career of SM U-111 underscores the immense risks faced by Britain’s merchant seamen, whose ships were often unarmed and vulnerable to attack.

Commemoration

S.S. Boscastle
Tower Hill Memorial, London
credit - Benjidog Historical Research Resources:
The Merchant Navy Memorial
First Engineer Thomas Jones is commemorated on the Tower Hill Memorial, London, which honours the men and women of the Merchant Navy and Fishing Fleets who perished in both World Wars and have no known grave but the sea.

Legacy

Though few personal records remain, Thomas Jones exemplifies the courage and commitment of South Wales’s maritime engineers who kept Britain’s ships moving through wartime peril. From his early years as an engine fitter in Skewen to his final voyage aboard the Boscastle, his story mirrors that of countless seafarers whose skill and endurance underpinned Britain’s survival.

His name, engraved on the Tower Hill Memorial, ensures that his sacrifice — and that of his shipmates — will never be forgotten.

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