| Ejemplar | Hijos | Nietos |
Penwortham Model   Perfect Model x Gray Lass |
Penwortham Lass  Penwortham Model x Nell I I (uk) |
Saint Pedro (uk-usa)  Gray Eagle x Penwortham Lass Gray Eagle x Penwortham Lass |
| Ejemplar | Hijos | Nietos |
| Penwortham Model Perfect Model x Gray Lass |
Penwortham Lass Penwortham Model x Nell I I (uk) |
Saint Pedro (uk-usa) Gray Eagle x Penwortham Lass Gray Eagle x Penwortham Lass |