Daniel Thomas – Royal Naval Volunteer Reserve, H.M. Trawler John High

Signalman Daniel Thomas – Royal Naval Volunteer Reserve, H.M. Trawler John High

Early Life

Daniel Thomas was born in 1898, the son of David J. Thomas and Hannah Thomas, of 9 Cross Street, Brynhyfryd, Swansea.

Naval Service

Daniel enlisted in the Royal Naval Volunteer Reserve, serving as a Signalman aboard H.M. Trawler John High. Naval trawlers—often converted from civilian fishing vessels—were used extensively during the First World War for minesweeping, patrol duties, and coastal defence. Their crews faced constant danger from mines and enemy submarines.

H.M. Trawler John High

H.M. Trawler John High was a 228‑ton naval trawler, built in 1916 by A. Hall & Co. Ltd. of Aberdeen. Originally designed as a commercial trawler, she was requisitioned by the Royal Navy and armed for wartime service.

The vessel was deployed to the Murman Coast and the approaches to Archangel (Arkhangelsk), Russia, where enemy mines posed a severe threat to Allied shipping. Minesweeping trawlers like John High were essential in keeping these supply routes open.

On 7th August 1916, John High was sunk after striking a mine laid by the German submarine U‑75, commanded by Curt Beitzen. The explosion occurred off Mount Sozonova.

The loss of the vessel resulted in the deaths of 14 men, including Signalman Daniel Thomas. A memorial plaque erected in Archangel in 1916 by the British community commemorates the men who died while clearing the minefield.

Loss at Sea

Signalman Daniel Thomas lost his life on 7th August 1916 during the sinking of H.M. Trawler John High. His death reflects the heavy toll paid by the Royal Naval Volunteer Reserve during hazardous minesweeping operations in northern waters.

Commemoration

Daniel Thomas
Plymouth Naval Memorial, Plymouth
credit - findagrave

Daniel Thomas
Plymouth Naval Memorial, Plymouth
credit - findagrave

















Daniel Thomas is commemorated on the Plymouth Naval Memorial, which honours Royal Navy personnel who have no known grave but the sea. His name stands among those who served with courage and were lost in the line of duty

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