| Дети | Внуки | |
Hefty Son O' Mike (uk-usa)    Hefty Young Mike x Hefty Begum |
Brynhyfryd Gipsy Girl   Hefty Son O' Mike (uk-usa) x Lady Tams |
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| Brynhyfryd Hefty Billy Hefty Son O' Mike (uk-usa) x Lady Tams |
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| Brynhyfryd Hefty Princess Hefty Son O' Mike (uk-usa) x Lady Tams |
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| Brynhyfryd Sweetheart Hefty Son O' Mike (uk-usa) x Lady Tams |
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| Fernstone Hefty Mike Hefty Son O' Mike (uk-usa) x Brynhyfryd Nana |
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Gentle Mary (uk 1921)  Hefty Son O' Mike (uk-usa) x Eastham Marchioness |
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Hefty Master Grumpy  Hefty Son O' Mike (uk-usa) x Hefty Tradition |
Hefty Master Hefty Master Grumpy x Badminton Babs Hefty Master Grumpy x Badminton Babs |
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| Novo Maisie Hefty Master Grumpy x Silent Mollie Of Clough Hefty Master Grumpy x Silent Mollie Of Clough |
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| Sir Tranqull Grumpy Hefty Master Grumpy x Katusha Hefty Master Grumpy x Katusha |
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| Son O' Grumpy Hefty Master Grumpy x Lady Wilburs Hefty Master Grumpy x Lady Wilburs |
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| Hefty Success Hefty Son O' Mike (uk-usa) x Hefty Tradition |
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| Miss Hefty Hefty Son O' Mike (uk-usa) x Brynhyfryd Nana |