|Place of birth||Sydney New South Wales|
|Address||Balmain, New South Wales|
|Age at embarkation||24|
|Next of kin||Father, James O'Hehir, 9 Grove Street, Balmain, Sydney, New South Wales|
|Rank on enlistment||Private|
|Unit name||17th Battalion, 20th Reinforcement|
|AWM Embarkation Roll number||23/34/4|
|Embarkation details||Unit embarked from Sydney, New South Wales, on board HMAT A72 Beltana on
|Rank from Nominal Roll||Private|
|Unit from Nominal Roll||17th Battalion|
|Recommendations (Medals and Awards)||
'Work at Mont St.Quentin on 31 August 1918.'
|Fate||Returned to Australia
'These men [O'HEHIR and 3889 A.B. MANSFIELD] were the only stretcher bearers left on the objective during the attack on MONT ST. QUENTIN, near PERONNE, on 31st August 1918, and worked in such a tireless manner under heavy artillery and machine gun fire, that their courage can only be described as superb. Time after time, they ventured out over the trenches for the wounded, and carried them to the R.A.P. which was some considerable distance away, through constant fire from enemy guns. They did this again and again for 24 hours until they became utterly exhausted.'
Source: 'Commonwealth Gazette' No. 115