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The regimental War Diaries are held at The UK National Archives and as of April 2020 have been made available for free download*. They are the official unit war diaries for the British Army that contain records of daily activities, including casualties. They are not personal diaries.
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Second Lieutenant Richard Grain Humphreys
King's Royal Rifle Corps
Date of death: 28/09/1917 (aged 20)
Cemetery: TYNE COT MEMORIAL
Son of Sir Travers and Lady Humphreys, of 47, Castlebar Rd., Ealing, Middlesex.
Private Henry William Humphreys
Date of death: 16/09/1916 (aged 21)
Cemetery: THIEPVAL MEMORIAL
Son of Mrs. Humphreys, of 25, Thames Rd., Chiswick, London.
Sub-Lieutenant Ralph Lacy Gordon
Royal Naval Volunteer Reserve, HMS Tarlair
Date of death: 19/06/1918 (aged 36)
Cemetery: ABERDOUR (ST. FILLAN) OLD CHURCHYARD
Son of Henry George and Mary Margaretta Gordon, of 17, Gainsborough Mansions, West Kensington, London. Born at East Sheen, Surrey.