| Name | John Archibald O'BRIEN |
| Rank/Number | Acting Bombardier / A41573 |
| Regiment/Unit | Canadian Field Artillery / 2nd Bde |
| Enlisted | Valcartier, Canada |
| Age/Date of death | 23 / 25 Sep 1915 |
| How died/Theatre of war | Died / Home |
| Residence at death | |
| Cemetery | Cliveden War Cemetery, Bucks |
| Grave Reference | 9 |
| Location of memorial | Cliveden War Cemetery |
| Date/Place of birth | 22 Nov 1894 / Halifax, Nova Scotia |
| Date/Place of baptism | |
| Occupation of Casualty | labourer |
| Parents/Occupation | NOK sister Miss Margaret O'Brien / |
| Parents' Address | Gen Dyse?, Inverness Co, NS |
| Wife | |
| Wife's Address |