| Sons | Grand-sons | |
Mona Lass   Kentish Lad x Salvatelle Princess |
Chummy I I (can)  King Billy (can 1920) x Mona Lass |
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| Hefty Mona Hefty Boy (can 30212) x Mona Lass |
Alliston Romeo Dauntless Dan Beach Park x Hefty Mona |
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| Bonzo Beresford Hefty Pride x Hefty Mona |
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| Hefty Crusader Dauntless Dan Beach Park x Hefty Mona |
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| Hefty Haig Hefty Pride x Hefty Mona |
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| Hefty Katharina Hefty Pride x Hefty Mona |
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| Hefty Mona Belle Hefty Pride x Hefty Mona |
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| Hefty Mona Queen Hefty Pride x Hefty Mona |
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| Hefty Mona Rascal Dauntless Dan Beach Park x Hefty Mona |
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| Hefty Saucy Girl Hefty Pride x Hefty Mona |
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| Hefty Sheik Hefty Pride x Hefty Mona |
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| Prince Teddy (can) Dauntless Dan Beach Park x Hefty Mona |
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| Princess Mona (can) Dauntless Dan Beach Park x Hefty Mona |
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| Prudence Prim Dauntless Dan Beach Park x Hefty Mona |
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| Salvatelle Theo Hefty Pride x Hefty Mona |
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| Trudy Twicks Dauntless Dan Beach Park x Hefty Mona |
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King Billies Beauty  King Billy (can 1920) x Mona Lass |
Baumbrae Beauty Lass Ch Hefty Best (can-usa) x King Billies Beauty |
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| Grayling Mickey Ch Hefty Best (can-usa) x King Billies Beauty |
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| Our Susanne Ch Hefty Best (can-usa) x King Billies Beauty |
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| Mister Jiggs Hefty Boy (can 30212) x Mona Lass |