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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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Acting Bombardier Armstrong
Canadian Garrison Artillery
Date of death: 17/05/1917 (aged 27)
Cemetery: BROOKWOOD MILITARY CEMETERY
Son of Mr. and Mrs. George Armstrong, of St. Thomas, Ontario; husband of N. Helena Armstrong, of Portland, Oregon, U.S.A. Belonged to the Masonic Order.
Canadian Railway Troops
Date of death: 20/04/1917 (aged 27)
Cemetery: GREVILLERS BRITISH CEMETERY
Son of Fred and Sarah Harris, of Leamington Spa, Warwickshire, England; husband of Amy M. Desborough (formerly Harris), of 179, Balaclava St., St. Thomas, Ontario, Canada.