| Ejemplar | Hijos | Nietos |
Lady Idonia   Pomonia Jim x Sweet Alice (uk-can) |
Firbeck Duchess Mahomet Stone x Lady Idonia |
Derbyshire Diamond  Silver Ingot x Firbeck Duchess |
Iron Chancellor (uk-can)  Silver Tugos x Firbeck Duchess |
||
| Lali Dela Quality x Firbeck Duchess |