Source: Michael Doyle Their Name Liveth For Evermore: The Great War Roll of Honour for Leicestershire and Rutland.
Other sources show the spelling of his Surname as Hargreaves. The War Diary entry for events between the 24th and the 31st August 1916 records. BOURTHES. Additional working party of 24 other ranks attached II Corps. Remainder of the Regiment at BOURTHES. Casualties during the month. 1 other rank killed in action (from working party). 1 other rank killed in action (attached to the SOUTH LANCASHIRE REGT). 9 other ranks wounded in action (from working party).
STATES:
Officers 31st July 30
Add
2nd Lt. W. C. M. BERRIDGE
Captain A. L. YATES (ROYAL ARMY MEDICAL CORPS) 2
32
Deduct
Captain W. B. L. BONN (To ENGLAND)
2nd Lt. E. W. COOPER (To Hospital)
2nd Lt. G. F. BREWITT (To Hospital)
2nd Lt. I. C. SMITH (To Hospital)
2nd Lt. W. E. WIGGINS (To Hospital)
Captain M. MURPHY (ROYAL ARMY MEDICAL CORPS) 7
31st August 25
Other Ranks 31st July 581
Add
From Hospital 14
From Base 4
From temporary detachment 2
Draft 18 38
619
Deduct
Killed in action 2
Wounded 9
To Hospital (Sick) 26
To 7th Machine Gun Squadron 7
To other units 1
To temporary detachment 3
To ENGLAND 1 49
31st August 570

Source: Leicestershire War Memorials Project.
Herbert was born in 1888 in Leicester and worked in a local tyre manufacturing company, whilst living at 8 Denmark Road. On 21st September he married Edith Hutt; they had two children, Herbert (born 1912) and Florence (born in 1914).
-------------------------------
Submitted by Herbert's grandson, D. Hargrave, 2018