|Date of birth|
|Place of birth||Timaru, New Zealand|
|Address||Middle Brighton, Victoria|
|Age at embarkation||31|
|Next of kin||Wife, Mrs J MacKenzie, 'Truro', Roslyn Street, Middle Brighton, Victoria|
|Rank on enlistment||Major|
|Unit name||Australian Naval and Military Expeditionary Force, Army Medical Corps|
|AWM Embarkation Roll number||23/112/5|
|Embarkation details||Unit embarked from Sydney, New South Wales, on board SS Morinda on
|Rank from Nominal Roll||Lieutenant Colonel|
|Unit from Nominal Roll||Australian Naval & Military Expeditionary Force|
|Fate||Returned to Australia
War service: embarked Sydney for Rabaul, 17 March 1915.
Disembarked Sydney, 2 January 1921.
Discharged (appointment terminated), 6 January 1921.
Medal: British War MedalAuthor of Vol. 10 ('The Australians at Rabaul', pub. 1927) of the 'Official History of Australia in the War of 1914-1918', C.E.W. Bean, ed.
|Miscellaneous details||Name incorrectly recorded on Embarkation Roll as McKENZIE.|
|Date of death|
|Age at death||72|
|Sources||NAA: B2455, MacKENZIE Seaforth Simpson
'Australian Dictionary of Biography', vol. 10, pp. 304-05