|Place of birth||Crows Nest New South Wales|
|Age at embarkation||18|
|Next of kin||Mother, Mrs Mary Gavin, Peechey, Crows Nest Line, Queensland|
|Previous military service||Nil (exempt area under Compulsory Military Training scheme)|
|Place of enlistment||Brisbane, Queensland|
|Rank on enlistment||Private|
|Unit name||5th Light Horse Regiment, 26th Reinforcement|
|AWM Embarkation Roll number||10/10/5|
|Embarkation details||Unit embarked from Melbourne, Victoria, on board HMAT A42 Boorara on
|Rank from Nominal Roll||Private|
|Unit from Nominal Roll||Australian Mounted Divisional Train|
|Fate||Returned to Australia
|Family/military connections||Brothers: 482 Lance Corporal James GAVIN, 31st Bn, killed in action, 19 July 1916; 3261 Pte Patrick Joseph GAVIN, 5th Light Horse Regiment, returned to Australia, 28 June 1919;|
Enlisted 16 January 1917; discharged, 7 February 1917 (underage: correct age 16 years 7 months).
War service: Egypt, Palestine.
Disembarked Suez, 20 June 1917.
Transferred to Australian Army Service Corps Training Unit, 26 July 1917.
Marched out to Isolation Camp, 4 August 1917; marched out to Australian Army Service Corps Training Depot, 7 August 1917.
Found guilty, 9 August 1917, of when on Active Service neglecting to obey Routine Order in that he passed an Officer and failed to salute: awarded 7 days' confined to barracks.
Marched out to Anzac Divisional Train, 10 October 1917; taken on strength, 3rd Company, 12 October 1917.
Detached for duty to 1st Light Horse Brigade, 14 October 1917; rejoined unit from detachment, 20 December 1917.
Admitted to 65th Casualty Clearing Station, 24 May 1918 (tonsilitis); transferred to 26th Casualty Clearing Station, Ludd, 24 May 1918; to 76th Casualty Clearing Station, 26 May 1918; to 47th Stationary Hospital, Gaza, 26 May 1918; to 44th Stationary Hospital, Kantara, 30 May 1918; to 14th Australian General Hospital, Port Said, 31 May 1918; to Port Said Rest Camp, 16 June 1918; to AASC Training Depot, Moascar, 26 June 1918; to Divisional Train, 27 November 1918.
Commenced return to Australia from Kantara on board HT 'Oxfordshire', 10 July 1919; disembarked Sydney, 17 August 1919; discharged, Brisbane, 17 September 1919.Medals: British War Medal, Victory Medal
|Sources||NAA: B2455, GAVIN Stephen|