|Place of birth||New Plymouth, New Zealand|
|Address||Sydney, New South Wales|
|Age at embarkation||25|
|Next of kin||Wife, Mrs Caroline Calder, 'Denbigh', Narellan, New South Wales|
|Previous military service||Served in the New Zealand Mounted Rifles for 1 year 10 months; discharged on account of sickness.|
|Place of enlistment||Sydney, New South Wales|
|Rank on enlistment||Sapper|
|Unit name||Cavalry Divisional Signal Squadron 1, Reinforcement 2|
|AWM Embarkation Roll number||22/33/1|
|Embarkation details||Unit embarked from Melbourne, Victoria, on board HMAT A55 Kyarra on
|Rank from Nominal Roll||Corporal|
|Unit from Nominal Roll||1st Australian Wireless Signal Squadron|
|Fate||Returned to Australia
War service: embarked Melbourne, 7 September 1917; disembarked Colombo, Ceylon, 18 September 1917; embarked 2 October 1917; disembarked Bombay, India, 10 October 1917; embarked 28 October 1917; disembarked Basrah, Mesopotamia, 2 November 1917.
Admitted to 16th Casualty Clearing Station, Baghdad, 12 December 1917; discharged from No 1 British General Hospital, Amara, 31 December 1917 (venereal sore). Admitted to hospital, 19 March 1918; discharged from No 1 British General Hospital, Amara, 6 April 1918 (venereal sore).
Taken on strength, 1st Australian Wireless Signal Squadron, 23 May 1918.
Appointed Driver as from 28 July 1918.
Embarked Basrah on board 'Northbrook' for passage to Australia, 26 February 1919; disembarked Bombay, 5 March 1919, and entrained for Calcutta.
Commenced return to Australia from Calcutta on board 'Janus', 22 March 1919; arrived Melbourne, 19 May 1919, and proceeded by train to Sydney; discharged, 13 August 1919.Medals: British War Medal, Victory Medal
|Sources||NAA: B2455, CALDER Robert Malcolm|