| Regimental number | 2655 |
| Place of birth | Blakeston, South Australia |
| Religion | Roman Catholic |
| Occupation | Farmer |
| Address | Morawa, Western Australia |
| Marital status | Married |
| Age at embarkation | 44.3 |
| Height | 5' 6" |
| Weight | 125 lbs |
| Next of kin | Wife, Mrs Olive Katherine Valentine, Morawa, Western Australia |
| Previous military service | Served for 6 years in the 17th Light Horse Regiment, Citizen Military Forces. |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Perth, Western Australia |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 18th Reinforcement |
| AWM Embarkation Roll number | 10/15/3 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board RMS Morea on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Imperial Camel Brigade |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Spelt Sidney MacKenzie Valentine on NR |
| Discharge date | |
| Other details |
War service: Egypt, Palestine Wounded in action, near Gaza, 19 April 1917 (gun shot wound, left forearm). Commenced return to Australia on board HT 'Boorara', 23 August 1917; discharged (wounded), Perth, 9 October 1917. Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 74 |
| Place of burial | Morawa Cemetery, Western Australia |
| Sources | NAA: B2455, VALENTINE Sidney Mackenzie |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
