| 子 | 孫 | |
Brynhyfryd Heartsease   Brynhyfryd Smasher x Brynhyfryd Sweetheart |
Hefty Mike  Knowsley Boy x Brynhyfryd Heartsease |
Monty (can) Hefty Mike x Miss Saskatoon Hefty Mike x Miss Saskatoon |
| Hyfryg Imperator Hazelwood Samson x Brynhyfryd Heartsease |
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| Lady Diana I V Hazelwood Samson x Brynhyfryd Heartsease |
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| London Derry Knowsley Boy x Brynhyfryd Heartsease |