| Regimental number | 17546 |
| Place of birth | Melbourne Victoria |
| Religion | Presbyterian |
| Occupation | Farmer |
| Address | Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, William Sinclair, 12 Garton Street, Princes Hill, Victoria |
| Enlistment date | |
| Rank on enlistment | Driver |
| Unit name | Cavalry Divisional Signal Squadron 1 |
| AWM Embarkation Roll number | 22/33/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A15 Port Sydney on |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | 1st Australian Wireless Signal Squadron |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Given name William George |
| Miscellaneous information from cemetery records | Plaque in Victorian Garden of Remembrance |
| Date of death |