'During a raid by a party of the 2nd Battalion, Wellington Regiment, on the night of 2nd-3rd July 1916, against then enemy's trenches, Company Sergeant-Major W.E Frost (since died of wounds), Ruahine Company, 2nd Battalion, Wellington Regiment, assisted 2nd Lieutenant R.E.V. Riddiford to cover the withdrawal of the raiders across "No man's land" to their own trenches. This withdrawal was necessary owing to enfilade fire from machine guns and grenades thrown from enemy's support lines. When the withdrawal to their own trenches had been completed, C.S.M Frost twice returned to the enemy's lines through the German wire, and under heavy fire bought back two wounded men who were lying within a few yards of the enemy's parapet, and so prevented them from being taken prisoners.'
Source: 'London Gazette'
Date: 9 December 1916

'For conspicuous gallantry in assisting an officer to cover the withdrawal of raiders, which was necessary owing to enfilade fire from machine guns. Twice he returned to the enemy's line through their wire, and under heavy fire rescued and bought back two wounded men.'
Source: 'London Gazette'
Date: 22 September 1916

Regimental number	10/213
Date of birth	11 July 1893
Place of birth	Auckland
Religion	Church of England
Occupation	Plumber
Address	Wharewhitu, Dannevirke
Marital status	Single
Age at embarkation	21.1
Height	5' 9.5"
Weight	167 lbs
Next of kin	Father, Thomas H W Frost, Melvin House, Te Kuiti
Previous military service	Served for 2 years in the Dannevirke Volunteers; transferred to the Territorial Force; still serving at time of NZEF enlistment.
Enlistment date	14 August 1914
Place of enlistment	Masterton
Rank on embarkation	Private
Enlistment status	Volunteer
Unit name	New Zealand Expeditionary Force, Main Body, Wellington Infantry Battalion
Embarkation details	Unit embarked from Wellington on board HMNZT 10 Arawa on 16 October 1914
Final rank	Warrant Officer Class 2
Final unit	17th (Ruahine) Company, 2nd Battalion, Wellington Infantry Regiment
Fate	Died of wounds 17 August 1916
Age at death from cemetery records	24
Place of burial	Bailleul Communal Cemetery Extension (Plot II, Row F, Grave No 164), Nord, France
Miscellaneous information from cemetery records	Parents: Thomas and Ada Frost, Otorahanga
Medals	Croix de Guerre (France) 'During a raid by a party of the 2nd Battalion, Wellington Regiment, on the night of 2nd-3rd July 1916, against then enemy's trenches, Company Sergeant-Major W.E Frost (since died of wounds), Ruahine Company, 2nd Battalion, Wellington Regiment, assisted 2nd Lieutenant R.E.V. Riddiford to cover the withdrawal of the raiders across "No man's land" to their own trenches. This withdrawal was necessary owing to enfilade fire from machine guns and grenades thrown from enemy's support lines. When the withdrawal to their own trenches had been completed, C.S.M Frost twice returned to the enemy's lines through the German wire, and under heavy fire bought back two wounded men who were lying within a few yards of the enemy's parapet, and so prevented them from being taken prisoners.' Source: 'London Gazette' Date: 9 December 1916 Distinguished Conduct Medal 'For conspicuous gallantry in assisting an officer to cover the withdrawal of raiders, which was necessary owing to enfilade fire from machine guns. Twice he returned to the enemy's line through their wire, and under heavy fire rescued and bought back two wounded men.' Source: 'London Gazette' Date: 22 September 1916
Other details	War service: Egypt, Gallipoli, Western Front Medals: Distinguished Conduct Medal, Croix de Guerre, 1914-15 Star, British War Medal, Victory Medal
Miscellaneous details	Nominal Roll Vol. 1: Wellington Infantry Batln/Main Body
Sources	Archives New Zealand (Wellington), Agency AABK, Series 18805, File 167842246