| Date of enlistment | 30th June 1915 |
| Rank at enlistment | Private |
| Company | |
| Significant events while with the AIF | Wounded in Action twice – at Pozieres and Broodseinde |
Summary of Private Horner’s WW1 service record, located in the National Archives of Australia. Full details are available online, NAA Series B2455
| Date | Location | Event |
| 22nd November 1918 | Australia | Discharged |
| 22nd May 1918 | Australia | Returned to Australia |
| 16th March 1918 | England | Embarked Wandilla for Australia |
| 12th January 1918 | England | Admitted to No.1 Australian Auxiliary Hospital Harefield |
| 4th December 1917 | France | Invalided to England from Etaples, and admitted to Shorncliffe Hospital |
| 4th October 1917 | Belgium | Wounded in Action (2nd occasion) – gunshot wound right knee |
| 20th November 1916 | France | Marched in to Etaples depot |
| 19th November 1916 | England | Proceeding overseas from Folkestone on SS Onward |
| 8th August 1916 | France | Embarked Boulogne on HS Cambria for England |
| 31st July 1916 | France | Admitted 13th General Hospital |
| 27th July – 4th August 1916 | France | Wounded in Action – gunshot wound buttock and shoulder |
| 26th May 1916 | France | Absent without leave and making a false statement to a superior officer. 28 days FP #2 |
| 26th March 1916 | France | Disembarked at Marseille |
| 19th March 1916 | Egypt | Proceeded to join BEF from Alexandria on the Llandovery Castle |
| 8th January 1916 | Egypt | Taken on Strength at Tel-el-Kabir |
| 25th October 1915 | Egypt | Disembarked Alexandria |
| 29th September 1915 | Australia | Sailed from Melbourne on RMS Osterley |
| 29th September 1915 | Australia | Re-assigned to 5th Reinforcements 22nd Battalion |
| 19th July 1915 | Australia | Assigned to 9th Reinforcements, 7th Battalion |
| 7th July 1915 | Australia | Marched into depot |

FIRST WORLD WAR TIMELINE