| Ejemplar | Hijos | Nietos |
Hefty Jean   desconocido x desconocida |
Barnards Green Princess Newington Billy Boy x Hefty Jean |
|
| Hefty Pixie Tufnell Challenger x Hefty Jean |
Hefty Biddy Hefty Son O' Mike (uk-usa) x Hefty Pixie |
|
| Vinemount Chance Newington Billy Boy x Hefty Jean |