
| Regimental number | 1626 |
| Place of birth | Brighton, Victoria |
| School | State School, Victoria |
| Religion | Church of England |
| Occupation | Farmer |
| Address | Perth, Western Australia |
| Marital status | Single |
| Age at embarkation | 35 |
| Next of kin | Father, John Thomas Mumby, Williams Road, Prahran, Victoria |
| Previous military service | Enlisted for the South Africa War. |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 12th Reinforcement |
| AWM Embarkation Roll number | 10/15/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT RMS Mongolia on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Light Horse Regiment |
| Fate | Died as a result of accident |
| Place of death or wounding | Palestine |
| Age at death | 38 |
| Age at death from cemetery records | 38 |
| Place of burial | Jerusalem War Cemetery (Row W, Grave No. 80), Palestine |
| Panel number, Roll of Honour, Australian War Memorial | 8 |
| Miscellaneous information from cemetery records | Parents: John and Celia MUMBY. Native of Brighton, Victoria |
| Family/military connections | Cousin Lt Vassy died Gallipoli 1914. |