| Date of birth | |
| Religion | Church of England |
| Occupation | University student |
| Address | Bryn-y-mor_, Wynna Road, Woollahra Point, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, Professor M.W. McCallum, Sydney University, Sydney, New South Wales |
| Enlistment date | |
| Rank on enlistment | Lieutenant |
| Unit name | 20th Battalion, B Company |
| AWM Embarkation Roll number | 23/37/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A35 Berrima on |
| Rank from Nominal Roll | Major |
| Unit from Nominal Roll | 20th Battalion |
| Promotions |
Captain Unit: 20th Battalion/Staff 5th Infantry Brigade Promotion date: |
| Recommendations (Medals and Awards) |
Mention in Despatches Awarded, and promulgated, 'London Gazette', Second Supplement No. 30448 (28 December 1917); 'Commonwealth Gazette' No. 57 (18 April 1918). Mention in Despatches Awarded, and promulgated, 'London Gazette' No. 30706 (28 May 1918); 'Commonwealth Gazette' No. 165 (24 October 1918). Mention in Despatches Awarded, and promulgated, 'London Gazette' No. 31089 (31 December 1918); 'Commonwealth Gazette' No. 61 (23 May 1919). |
| Fate | Returned to Australia |
| Medals |
Distinguished Service Order Source: 'Commonwealth Gazette' No. 61 Date: |
| Other details | Medals: Distinguished Service Order, 1914-15 Star, British War Medal, Victory Medal |