Individual Details
Living
( - )
Families
| Spouse | Living |
| Father | Patrick Andrew O'Brien (1916 - 1991) |
| Mother | Mary Gouthro (1919 - 2010) |
| Sibling | Richard P. O'Brien (1945 - 1979) |
| Sibling | Living |
| Sibling | Living |
| Sibling | Living |
| Sibling | Kevin O'Brien ( - 2010) |