| Ejemplar | Hijos | Nietos |
Impregnable (can)    Silent Prince Thorneycroft (uk-can) x Copham Daisy (uk-can) |
Hilda (can-usa)   Impregnable (can) x Hoflich Little Queen |
Nickie (usa) Fern Lea Gamecock x Hilda (can-usa) |
| Hoflich Cora De Ora Impregnable (can) x Hoflich Little Queen |
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| Hoflich Invincible Impregnable (can) x Holmdale Lady |
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| Hoflich Lady May Impregnable (can) x Holmdale Lady |
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| Hoflich Reta Impregnable (can) x Holmdale Lady |
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| Hoflich Rex Impregnable (can) x Hoflich Little Queen |
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| Hoflich Tom Impregnable (can) x Holmdale Lady |
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| Mersey Rambler Impregnable (can) x Strathtay Lowestoft Roxanna |
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| Vectis Vivacious Impregnable (can) x Chinook Relentless |
Vectis Velocity Vectis Resulution x Vectis Vivacious |
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| Vectis Vindictive Vectis Resulution x Vectis Vivacious |