| Surname | Mercer | |||
| First Name(s) | Joseph Powell | |||
| Place of Birth | Ellesmere Port | |||
| Club(s) | Nottingham Forest Tranmere Rovers | |||
| Service | British Army | |||
| Rank | Sergeant | |||
| Service Number | F/10 | |||
| Previous Service Number(s) | - | |||
| Regiment or Corps | Duke of Cambridge's Own (Middlesex Regiment) | |||
| Unit(s) | 17th (Service) Battalion (1st Football) | |||
| Previous Regiment(s) or Corps | - | |||
| Unit(s) | - | |||
| Type of Casualty (If applicable) | - | |||
| Theatre of War (If applicable) | - | |||
| Date of Death (If applicable) | - | |||
| Place of Death (If applicable) | - | |||
| Place of Burial/Commemoration (If applicable) | - | |||
| Grave/Memorial Reference (If applicable) | - | |||
| Awards and Decorations | - | |||
| Citation(s) | - | |||
| Supplementary Notes | "B" Company. Wounded and Prisoner of War 27/04/1917. |
