- Period:
- First World War (1914-1918)
- Rank:
- Temporary Second-Lieutenant
- Unit:
- No. 1 Trench Mortar Battery
- Awarded on:
- November 4th, 1915
"For conspicuous gallantry on 25th September 1915 near Hulluch, when he took forward, under heavy fire, two mortars, in order to deal with some buildings in which hostile machine-guns were working. Lieutenant Carrigan's personal bravery has been most inspiring to the men of his battery in every action in which he has taken part."