Individual Details
Living
( - )
Families
| Father | Howard James Joseph O'Brien (1917 - 1991) |
| Mother | Katherine Rita "Kay" Allen (1908 - 1956) |
| Sibling | Alice Allen O'Brien (1939 - 2007) |
| Sibling | Howard Allen Francis "Anne" O'Brien (1941 - 2021) |
| Sibling | Living |