| Regimental number | 55823 |
| Date of birth | 10 May 1897 |
| Place of birth | Guildford, Western Australia |
| School | Goodwood Public School, South Australia |
| Religion | Methodist |
| Occupation | Farmer |
| Address | St Peters, South Australia |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Horatio Atton Duckmanton, 8th Avenue, St Peters, South Australia |
| Enlistment date | 7 May 1918 |
| Rank on enlistment | Private |
| Unit name | General Reinforcements (2nd South Australian) |
| AWM Embarkation Roll number | 23/111/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board RMS Orontes on 5 June 1918 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 43rd Battalion |
| Other details from Roll of Honour Circular | Grandfather: Jonathon Norton DUCKMANTON, b. Potter Hanworth Booths, Lincolnshire; served in various Royal Navy ships under Admiral Seymour; Crimean War. |
| Fate | Returned to Australia 5 September 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt Landsur Samuel Duckmanton on NR |
| Discharge date | --/11/1919 |
| Family/military connections | Brother: 6243 Pte Norton Atton DUCKMANTON, 27th Bn, killed in action, 2 March 1917; Father: Pte Jonathan Norton DUCKMANTON, 2nd Bn, Royal Sussex Regiment (b.Adelaide, SA, 22 July 1858; enlisted, 1881; served two years at the Curragh Camp, Ireland). |
| Other details | War service: France, Belgium. Arrived back in Australia per HMT 'Plassy', November 1919. |
| Date of death | 9 February 1969 |
| Place of burial | Centennial Park Cemetery |