| Regimental number | 54883 |
| Occupation | Engineer |
| Next of kin | Father, T S Jacka, Prospect Terrace, Mount Eden, Auckland |
| Rank on embarkation | Lance Corporal |
| Unit name | New Zealand Expeditionary Force, 28th Reinforcements (First Draft), E Company |
| Embarkation details | Unit embarked from Wellington on board HMNZT 89 Waitemata on |
| Family/military connections | Brothers: 12/3526 2nd Lt Frederick Clifton JACKA, 16th (Waikato) Company, 1st Battalion, Auckland Infantry Regiment, killed in action, 30 August 1918; 2/428 Sergeant Thomas Selwyn JACKA, 12th Battery, New Zealand Field Artillery, killed in action, 28 September 1917. |
| Sources | Nominal Roll Vol. 3: Roll 69, p. 9 |