| Regimental number | 432 |
| Place of birth | Ballarat Victoria |
| Religion | Wesleyan |
| Occupation | Miner |
| Address | Post Office, Finiston, Western Australia |
| Marital status | Married |
| Age at embarkation | 44 |
| Next of kin | Wife, Mrs 1sabella Maddern, same address |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | Mining Corps 1, Company 1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A38 Ulysses on |
| Regimental number from Nominal Roll | 422 |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | Tunnelling Companies Details |
| Fate | Returned to Australia |
| Family/military connections | Son: 2181 Lance Corporal William Thomas MADDERN MM, 28th Bn, died of wounds, 28 October 1917. |
| Other details |
War service: Western Front |