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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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Date of death: 14/06/1917 (aged 27)
Cemetery: ACHIET-LE-GRAND COMMUNAL CEMETERY EXTENSION
Son of James and Sophia Johnson, of 3, Wharf Rd., Bishop's Stortford, Herts.
Private Sidney Arthur Markwell
Date of death: 03/11/1916 (aged 18)
Cemetery: PUCHEVILLERS BRITISH CEMETERY
Son of Henry A. and Maud R. Markwell, of 22, Trinity St., Bishop's Stortford, Herts.