| 子 | 孫 | |
Hefty Young Mike   Richard Penfold x Bridget O' Flannigan |
Hefty Son O' Mike (uk-usa)   Hefty Young Mike x Hefty Begum |
Astonian Hetty  Hefty Son O' Mike (uk-usa) x Witton Queen Hefty Son O' Mike (uk-usa) x Witton Queen |
Brynhyfryd Gipsy Girl  Hefty Son O' Mike (uk-usa) x Lady Tams 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 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 Hefty Son O' Mike (uk-usa) x Lady Tams |
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| Brynhyfryd Sweetheart Hefty Son O' Mike (uk-usa) x Lady Tams Hefty Son O' Mike (uk-usa) x Lady Tams |
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| Cora (uk 1925) Hefty Son O' Mike (uk-usa) x Ruby (uk 1923) Hefty Son O' Mike (uk-usa) x Ruby (uk 1923) |
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| Duke Of Roxbury Hefty Son O' Mike (uk-usa) x Newington Banshee Of Tildale (uk-usa) Hefty Son O' Mike (uk-usa) x Newington Banshee Of Tildale (uk-usa) |
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| Fernstone Hefty Mike Hefty Son O' Mike (uk-usa) x Brynhyfryd Nana 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 Hefty Son O' Mike (uk-usa) x Eastham Marchioness |
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| Georgia Peach Stone Hefty Son O' Mike (uk-usa) x Newing Queen Hefty Son O' Mike (uk-usa) x Newing Queen |
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| Gloria Swanson Hefty Son O' Mike (uk-usa) x Lady Chancellor I I Hefty Son O' Mike (uk-usa) x Lady Chancellor I I |
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| Hefty Biddy Hefty Son O' Mike (uk-usa) x Hefty Pixie Hefty Son O' Mike (uk-usa) x Hefty Pixie |
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| Hefty Boy (usa) Hefty Son O' Mike (uk-usa) x Boltonia Beauty Hefty Son O' Mike (uk-usa) x Boltonia Beauty |
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| Hefty Grandson Of Mike Hefty Son O' Mike (uk-usa) x Boltonia Beauty Hefty Son O' Mike (uk-usa) x Boltonia Beauty |
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| Hefty Jiggs Hefty Son O' Mike (uk-usa) x Winnie Winkle Hefty Son O' Mike (uk-usa) x Winnie Winkle |
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Hefty Master Grumpy  Hefty Son O' Mike (uk-usa) x Hefty Tradition Hefty Son O' Mike (uk-usa) x Hefty Tradition |
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| Hefty Mike Double Hefty Son O' Mike (uk-usa) x Mondiofield Pansy Hefty Son O' Mike (uk-usa) x Mondiofield Pansy |
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| Hefty Queen (usa 1922) Hefty Son O' Mike (uk-usa) x Tildale Of Banshee Hefty Son O' Mike (uk-usa) x Tildale Of Banshee |
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| Hefty Success Hefty Son O' Mike (uk-usa) x Hefty Tradition Hefty Son O' Mike (uk-usa) x Hefty Tradition |
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| Hootch Hefty Son O' Mike (uk-usa) x Daisy King Hefty Son O' Mike (uk-usa) x Daisy King |
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| John Bull Esg Hefty Son O' Mike (uk-usa) x Lady Judith (usa 1921) Hefty Son O' Mike (uk-usa) x Lady Judith (usa 1921) |
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| Lady Betty (usa 1922) Hefty Son O' Mike (uk-usa) x Lady Judith (usa 1921) Hefty Son O' Mike (uk-usa) x Lady Judith (usa 1921) |
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| Madam Poppy Hefty Son O' Mike (uk-usa) x Media Redner Hefty Son O' Mike (uk-usa) x Media Redner |
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| Miss Hefty Hefty Son O' Mike (uk-usa) x Brynhyfryd Nana Hefty Son O' Mike (uk-usa) x Brynhyfryd Nana |
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| Miss Hefty Boltonia Hefty Son O' Mike (uk-usa) x Lady Chancellor I I Hefty Son O' Mike (uk-usa) x Lady Chancellor I I |
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| Mosele Huddle Hefty Son O' Mike (uk-usa) x Chalfonte Rose Hefty Son O' Mike (uk-usa) x Chalfonte Rose |
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| Royal Joker Hefty Son O' Mike (uk-usa) x Lady Judith (usa 1921) Hefty Son O' Mike (uk-usa) x Lady Judith (usa 1921) |
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| Sesqui Queen Hefty Son O' Mike (uk-usa) x Newing Queen Hefty Son O' Mike (uk-usa) x Newing Queen |
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| Silent Knight I I I Hefty Son O' Mike (uk-usa) x Princess Bess (usa 1924) Hefty Son O' Mike (uk-usa) x Princess Bess (usa 1924) |
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| Tex Reckard Hefty Son O' Mike (uk-usa) x Lady Chancellor I I Hefty Son O' Mike (uk-usa) x Lady Chancellor I I |
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| Tug O' War (usa 1922) Hefty Son O' Mike (uk-usa) x Daisy King Hefty Son O' Mike (uk-usa) x Daisy King |
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| Westdorf Son O' Mike Hefty Son O' Mike (uk-usa) x Winnie Winkle Hefty Son O' Mike (uk-usa) x Winnie Winkle |
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| Wild Wild Susan Hefty Son O' Mike (uk-usa) x Peggy M (usa) Hefty Son O' Mike (uk-usa) x Peggy M (usa) |