Donal Valentine O'SullivanAge: 7 days1956–1956
- Name
- Donal Valentine O'Sullivan
- Given names
- Donal, Valentine
- Surname
- O'Sullivan
 Birth | 14 February 1956 |
 Death | 21 February 1956 (Age 7 days) |
| Birth | 14 February 1956 |
| Death | 21 February 1956 (Age 7 days) |