Individual Details
Living
( - )
Families
| Spouse | Living |
| Child | Living |
| Father | Michael O'Neill (1899 - 1941) |
| Mother | Living |
| Sibling | Angela O'Neill (1929 - 1937) |
| Sibling | Living |
| Sibling | Margaret Ursula O'Neill ( - 2012) |
| Sibling | Living |
| Sibling | Patrick Desmond "Dessie" O'Neill (1939 - 1960) |
| Sibling | Mary Veronica "Vera" O'Neill ( - 2002) |
| Sibling | Living |