'For conspicuous gallantry and devotion to duty near Gouzeaucourt from 8th to 3th September 1918. During the night 11th/12th September L/Cpl Mathias, who was in charge of the Brigade Central Visual Station, was heavily shelled with high explosive and gas. Although in a very exposed position he remained at his post and established communication with battalions. He was suffering from the effects of gas but refused to leave his post until relieved, and was then evacuated to hospital. The maintaining of his station was of the greatest importance, as, owing to the heavy shell fire telephone communication was impossible.'
Source: London Gazette
Date: 11 February 1919

Regimental number	23/495
Address	Albion House, Wanganui
Marital status	Married
Next of kin	Wife, Mrs J S Mathias, 35 Ohiro Road, Wellington
Rank on embarkation	Rifleman
Enlistment status	Volunteer
Unit name	New Zealand Expeditionary Force, 1st Battalion, New Zealand Rifle Brigade, Battalion Signallers
Embarkation details	Unit embarked from Wellington on 9 October 1915
Final rank	Lance Corporal
Final unit	1st Battalion, New Zealand Rifle Brigade
Medals	Military Medal 'For conspicuous gallantry and devotion to duty near Gouzeaucourt from 8th to 3th September 1918. During the night 11th/12th September L/Cpl Mathias, who was in charge of the Brigade Central Visual Station, was heavily shelled with high explosive and gas. Although in a very exposed position he remained at his post and established communication with battalions. He was suffering from the effects of gas but refused to leave his post until relieved, and was then evacuated to hospital. The maintaining of his station was of the greatest importance, as, owing to the heavy shell fire telephone communication was impossible.' Source: London Gazette Date: 11 February 1919
Miscellaneous details	Nominal Roll Vol. 1: Battalion Signallers/1st NZRB