| Name | Sumner, Harold |
| Rank | Private |
| Regiment/Service | Royal Sussex Regiment |
| Unit Text | 13th Bn. |
| Date of Death | 30 June 1916 |
| Service No | SD/3224 |
| Grave/Memorial Reference | Panel 69 to 73 |
| Cemetery | Loos Memorial |
British and Irish Military Databases. The Naval and Military Press Ltd.
States born Stockport, Cheshire and enlisted Crawley, Sussex.
Source: Ancestry Military-Genealogy.com, comp. UK, Soldiers Died in the Great War, 1914-1919
Source: Commonwealth Graves Commission