| Regimental number | 20240 |
| Place of birth | Sydney New South Wales |
| Other Names | BUCKLETON, Sidney David |
| Religion | Roman Catholic |
| Occupation | Dairy farmer |
| Address | Bemboka, New South Wales |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, Fitzroy Buckleton, 'Yuletide,' Duke Street, Kensington, New South Wales |
| Enlistment date | 19 May 1917 |
| Rank on enlistment | Sapper |
| Unit name | Field Company Engineers, September 1917 Reinforcements |
| AWM Embarkation Roll number | 14/42/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A71 Nestor on 21 November 1917 |
| Fate | Returned to Australia |
| Family/military connections | Brother: 151 Driver Ernest Fitzroy BUCKLETON MM, 1st Bn, returned to Australia, 8 October 1918 |
