| Generation 1 | Generation 2 | Generation 3 | Generation 4 | Generation 5 | Generation 6 | Generation 7 |
Ch Roger Gentleman Jack   
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Am CH Jolly Jericho  |
Ch Phillips Jolly Atlas |
Am CH Lanark Hefty Atlas |
Hefty Rival (uk-usa)  |
Failsworth White Bosun  |
Battle Duke |
Hollingworth Beauty  |
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| Devas Queen |
Blue Marquis |
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| Susan (uk 1920) |
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| Lanark Lady Lou |
Ch Yamamoto Challenger  |
Tam Hin (uk-can)  |
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| Forfarshire Nell |
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| Lanark Peggy |
Who Goes There (uk-can)  |
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| Aylwin Duchess |
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| Sociable Lucky |
Hazelwood Samson  |
Hefty Monarch (uk-can)  |
Kilburn Banker (uk-can) |
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| Nullie Secundi Queenie |
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| Ch Lady Betty I I (can 26078) |
Prince Albert (can 21541)  |
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| Lady Beatrice (can) |
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| Andys Omnibus |
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| Ixie Jewel Of Buttonwood |
Morovian Midship Man |
Eng CH Dunscar Draftman  |
Ch Lochaber |
Kilburn Regal  |
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| Eng CH Muiravonside Lass |
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| Seamew |
Cymro |
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| Lady Dora |
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| Python Queenie |
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| Ixie Girl |
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| Roger Jack Tars Lady |
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| Stephen Some Stuff |
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