|Place of birth||Tallarook, Victoria|
|School||State School, Tallarook, Victoria|
|Religion||Church of England|
|Address||Artillery Barracks, Queenscliff, Victoria|
|Age at embarkation||23|
|Next of kin||Father, F S Barker, 'Moet', Colac, Victoria|
|Previous military service||Royal Australian Garrison Artillery; Served in the Royal Australian Garrison Artillery, Queenscliff, Victoria.|
|Place of enlistment||Queenscliff, Victoria|
|Rank on enlistment||Gunner|
|Unit name||Siege Artillery Brigade|
|AWM Embarkation Roll number||13/49/1|
|Embarkation details||Unit embarked from Melbourne, Victoria, on board HMAT A67 Orsova on
|Rank from Nominal Roll||2nd Lieutenant|
|Unit from Nominal Roll||36th Heavy Artillery Brigade|
|Fate||Died as a result of accident
|Age at death||26|
|Age at death from cemetery records||26|
|Place of burial||Trois-Arbres Cemetery (Plot II, Row E, Grave No. 1), Steenwerck, France|
|Panel number, Roll of Honour,|
Australian War Memorial
|Miscellaneous information from|
|Parents: Francis and Alice Maud Barker, 367 Ascot Vale Road, Moonee Ponds, Victoria, Australia.|
|Family/military connections||Brother: 3015 Pte Tasman Foster BARKER, died of wounds, 21 April 1918.|
War service: Western Front
Disembarked Boulogne, 27 February 1916.
Promoted Bombardier, France, 1 May 1916.
Promoted Corporal, 16 Novemner 1916.
Promoted Sergeant and transferred to 3rd Australian Siege Battery, England 13 December 1916; taken on strength, 338th Australian Siege Battery, Stowlangtoft, 16 December 1916.
Proceeded overseas to France, 24 July 1917; marched into Australian General Base Depot, Rouelles, 25 July 1917; marched out to 36th Heavy Artillery Group, 28 July 1917.
Taken on strength, 36th Heavy Artillery Group Headquarters, 1 August 1917.
Transferred to 36th Heavy Artillery Group Signal Sub-Section, 1 October 1917.
To be 2nd Lieutenant and posted to command 36th Heavy Artillery Group Signal Sub-Section, 10 December 1917.
On leave to United Kingdom, 25 January 1918; rejoined from leave, 11 February 1918.
Accidentally injured, 27 February 1917; admitted to No 2 Australian Casualty Clearing Station, Belgium, 27 February 1918 (unconscious). [2nd Lieutenant Barker was riding a Triumph motor cycle after drawing the pay of the unit, on 27 February 1918. He was travelling at a very rapid rate along the Bailleul-Armentiers road when he collided witha horse ridden by Capatin Mulholland, 3rd Machine Gun Company. Barker fell heavily some distance away. He suffered a fracture to the base of his skull].Medals: British War Medal, Victory Medal
|Sources||NAA: B2455, BARKER Rollo William|