| Regimental number | 5363 |
| Date of birth | c. 1894 |
| Place of birth | London, England |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Leeton, New South Wales |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, C H De Dulin, 156 Albert Road, Peckham, London, England |
| Enlistment date | 24 November 1915 |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, 17th Reinforcement |
| AWM Embarkation Roll number | 23/19/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A4 Ceramic on 14 April 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 54th Battalion |
| Fate | Returned to Australia 1 June 1919 |
| Miscellaneous details (Nominal Roll) | Stated to be Claude Reginald De Dulin on Nominal Roll. Buried Woronora Cemetery, NSW. |
| Date of death | c. 1934 |
