'For devotion to duty and untiring energy during the period from March 1918 to September 1918. This NCO commands the Battalion Pioneers which section he has brought to a very high standard of excellence. Whether in the line or out of it Sergt Crook is constantly employed, always keen and very anxious to do everything for the comfort of the battalion. By his willingness to undertake any work at any time greatly improved the comfort and surroundings of the men under trying circumstances.'
Source: London Gazette
Date: 18 January 1919

Regimental number	24/729
Address	Sutherland Terrace, Blenheim
Marital status	Single
Next of kin	Mother, Mrs Crook, Sutherland Terrace, Blenheim
Rank on embarkation	Rifleman
Enlistment status	Volunteer
Unit name	New Zealand Expeditionary Force, New Zealand Rifle Brigade, 2nd Battalion, Army Service Corps
Embarkation details	Unit embarked from Wellington on 9 October 1915
	Members of the New Zealand Rifle Brigade, 2nd Battalion, Army Service Corps, left New Zealand on board four ships, HMNZT 30 'Maunganui', HMNZT 31 'Tahiti', HMNZT 32 'Aparima', HMNZT 33 'Navua', and HMNZT 34 'Warrimoo'. It is not possible from the Nominal Roll to determine on which ship an individual embarked.
Medals	Meritorious Service Medal 'For devotion to duty and untiring energy during the period from March 1918 to September 1918. This NCO commands the Battalion Pioneers which section he has brought to a very high standard of excellence. Whether in the line or out of it Sergt Crook is constantly employed, always keen and very anxious to do everything for the comfort of the battalion. By his willingness to undertake any work at any time greatly improved the comfort and surroundings of the men under trying circumstances.' Source: London Gazette Date: 18 January 1919
Miscellaneous details	Nominal Roll Vol. 1: Army Service Corps/2nd NZRB