|Place of birth||Coburg, Victoria|
|Age at embarkation||43|
|Next of kin||Sister, Maria Clam, 73 Charles Street, Northcote, Victoria|
|Previous military service||Served in the South African Mounted Police.|
|Rank on enlistment||Private|
|Unit name||24th Battalion, 18th Reinforcement|
|AWM Embarkation Roll number||23/41/4|
|Embarkation details||Unit embarked from Melbourne, Victoria, on board HMAT A20 Hororata on
|Rank from Nominal Roll||Private|
|Unit from Nominal Roll||24th Battalion|
|Fate||Died of disease
|Age at death from cemetery records||45|
|Place of burial||Durrington Cemetery (Grave No. 214), Wiltshire, England|
|Panel number, Roll of Honour,|
Australian War Memorial
|Miscellaneous information from|
|Parents: John and Annie O'LEARY|
War service: England
Embarked from Melbourne, 23 November 1916; disembarked Plymouth, England, 29 January 1917.
Admitted to Fargo Military Hospital, 11 February 1917 (influenza); died of broncho-pneumonia, 27 February 1917.
Medal: British War Medal
O'Leary's personal effects were duly transmitted to Mrs M. Little, whom at some stage after enlistment he had designated as his next of kin. Subsequently, his sister, Mrs M.A. Clam, 73 Charles Street, Northcote, Victoria, laid claim to them. Mrs Little, on returning the effects, 'complained that it was unfair and improper to take it from her for the reason that the soldier had been living with her for the past 9 years, and that the soldier was disowned and neglected by his brother and sister, and that because of the family having severed all relations with him the soldier left her as his next-of-kin.'