Colonel Lionel Beaumont-Thomas MC (1 August 1893 – 7 December 1942) was a Welsh businessman, British Army officer and politician, who served as Conservative Member of Parliament for Birmingham King's Norton, from 1929 to 1935.

He then spent two years touring Europe, gaining knowledge of pig iron and steel production, particularly the ARBED steelworks in Luxembourg where he lived.

[1] After resigning his commission in 1923, as well as his duties as Deputy Chairman of Richard Thomas & Co Ltd, he was a Justice of the Peace and a Conservative County Councillor in Herefordshire.

[4] Two years later he showed his gratitude to his constituents, inviting 2,000 to tea at Lyons Corner House, followed by a tour of the Palace of Westminster.

In part due to his fluency on French, he was appointed to the command of the enemy armaments intelligence branch at the Ministry of Economic Warfare, a post he held until May 1940.

In November 1942, at the height of the Battle of the Atlantic, Beaumont-Thomas left England as a passenger on the cargo ship Henry Stanley.

On the night of 6–7 December German submarine U-103 sank Henry Stanley about 580 nautical miles (1,070 km) west of the Azores.

Gustav-Adolf Janssen, tried to find the lifeboats, but in the heavy sea U-103's engine room shipped 0.5 metres (20 in) of water, forcing him to abandon the search.

[8] After being assumed dead the following year,[9] his name was inscribed on the Brookwood Memorial,[10] together with 3,500 other men and women of the land forces of the Commonwealth who died in action during the Second World War and have no known grave.

The couple lived at Great Brampton House, in Madley, Herefordshire, and had four children: Richard Lionel, Nigel, Paul and Pearl.

[1] After he started a prolonged affair with Isuelt Marjery Bland daughter of Oscar Theodore Bland of Riversdale, Insinga, Rhodesia (born 6 March 1896 in Culworth, Northamptonshire – died 15 December 1987 in Yeovil, Somerset), at the time wife of Henry Edward Hazlehurst, Pauline divorced him in 1933.