Individual Details
Living
( - )
Families
| Father | Eric Postlethwaite ( - 1987) |
| Mother | Helen Gertrude Dean (1922 - 1987) |
| Sibling | Eric Gregory Postlethwaite Jr. (1945 - 2001) |
| Sibling | Gus Postlethwaite ( - 2003) |
| Sibling | Living |
( - )
| Father | Eric Postlethwaite ( - 1987) |
| Mother | Helen Gertrude Dean (1922 - 1987) |
| Sibling | Eric Gregory Postlethwaite Jr. (1945 - 2001) |
| Sibling | Gus Postlethwaite ( - 2003) |
| Sibling | Living |