page_title: Arthur O'Neill
section_title: Military career
hierarchical_section_title: Arthur O'Neill / Career / Military career
caption_attribution_description: English: O'Neill Memorial Hall Fenagh LOL is located at Dunnygarran and was built in 1926
context_page_description: The Honourable Arthur Edward Bruce O'Neill, was an Irish Ulster Unionist Party politician who was the first Member of Parliament to be killed in World War I.
context_section_description: O'Neill joined the British Army as a second lieutenant in the 2nd Regiment of Life Guards on 26 May 1897, and was promoted to lieutenant on 15 June 1898. He saw active service in South Africa between 1899 and 1900, during the Second Boer War, for which he was awarded the Queen's South Africa Medal with three clasps. On 3 January 1902 he was promoted to captain, and temporary appointed adjutant to the 2nd Life Guards.
  O'Neill fought in the First World War as a captain in "A" Squadron 2nd Life Guards. He was killed in action at Klein Zillebeke ridge on 6 November 1914, aged 38, the first MP to be killed in the conflict. He is commemorated on the Menin Gate in Ypres. O'Neill is also commemorated on Panel 8 of the Parliamentary War Memorial in Westminster Hall, one of 22 MPs that died during World War I to be named on that memorial. O'Neill is one of 19 MPs who fell in the war who are commemorated by heraldic shields in the Commons Chamber. A further act of commemoration came with the unveiling in 1932 of a manuscript-style illuminated book of remembrance for the House of Commons, which includes a short biographical account of the life and death of O'Neill.
caption: O'Neill Memorial Hall in Dunnygarran, South Antrim, built in 1926
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