| Sons | Grand-sons | |
Lady Cambridge   Son O' Mike x Ash Lea Countess |
Berkshire Boy  Ch Crewe So Favourite (uk-can) x Lady Cambridge |
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| Blackburn Queen Ch Crewe So Favourite (uk-can) x Lady Cambridge |
Blackburn Banker   Marwell Shamrock x Blackburn Queen |
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| Blackburn Belle Marwell Shamrock x Blackburn Queen |
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| Blackburn Beulah I I Marwell Shamrock x Blackburn Queen |
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| Blackburn Brian Marwell Shamrock x Blackburn Queen |
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| Blackburn Bruno Marwell Shamrock x Blackburn Queen |
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| Blackburn Budget Marwell Shamrock x Blackburn Queen |
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| Blackburn Timmins Queen Marwell Shamrock x Blackburn Queen |
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| Duke Of Toronto Marwell Shamrock x Blackburn Queen |
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| Marwell Maple Marwell Shamrock x Blackburn Queen |
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| Blighty Bertha Blighty Bursley x Lady Cambridge |
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| Captain Caesar Ch Crewe So Favourite (uk-can) x Lady Cambridge |
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| Justso Betty Ch Crewe So Favourite (uk-can) x Lady Cambridge |
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| Justso Jessie Blighty Bursley x Lady Cambridge |
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| Justso Kitty Ch Crewe So Favourite (uk-can) x Lady Cambridge |
Marwell Ashlea Marwell Shamrock x Justso Kitty |
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| Rayous Tippin Marwell Shamrock x Justso Kitty |
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| Squire Dan Marwell Shamrock x Justso Kitty |
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| Lady Sessue Ch Crewe So Favourite (uk-can) x Lady Cambridge |
Admiral Ambrose White Mule x Lady Sessue |
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| Bon Limehurst Pat Springbank Bill x Lady Sessue |
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| Bon Minerva Springbank Bill x Lady Sessue |
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| Bon Pandora Springbank Bill x Lady Sessue |
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| Colonel Mac Marwell Shamrock x Lady Sessue |
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| King Richard (can 1931) Marwell Shamrock x Lady Sessue |
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| Lady Queensborough Marwell Shamrock x Lady Sessue |
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| Lambton Lass White Mule x Lady Sessue |
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| Mike Sessue Marwell Shamrock x Lady Sessue |
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| Molly Shamrock Marwell Shamrock x Lady Sessue |
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| Squire Tuck White Mule x Lady Sessue |
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Ch Marwell Marquis   Ch Crewe So Favourite (uk-can) x Lady Cambridge |
Ben Braggie Scrappy Ch Marwell Marquis x Mickey I'm Alone |
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| Bob The Tar Heel Ch Marwell Marquis x Wells Lady Sue |
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| Bonhomie Admiral I I I Ch Marwell Marquis x Chumleigh Nursegirl |
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| Bozo Boy O Ch Marwell Marquis x Lady Molley H |
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| Centennial White Boy Ch Marwell Marquis x Mickey I'm Alone |
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| Cleopatra Of Barrington Ch Marwell Marquis x Adeles Robinhood I I |
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| Devontone Marquis Ch Marwell Marquis x Adeles Robinhood I I |
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| Diamond Campaigner Ch Marwell Marquis x Jenadair Rose Leaf |
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| Diamond Dark Horse Ch Marwell Marquis x Lady Challenge (can 1932) |
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| Diamond King O' Connor Ch Marwell Marquis x Lady Challenge (can 1932) |
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| Diamond Model Ch Marwell Marquis x Jenadair Rose Leaf |
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| Diamond Rastus Ch Marwell Marquis x Jenadair Rose Leaf |
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| Diamond Smiling Robbie Ch Marwell Marquis x Lady Challenge (can 1932) |
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| Excelsior (can) Ch Marwell Marquis x Adeles Robinhood I I |
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| Frasers Prize Baby Ch Marwell Marquis x Mickey I'm Alone |
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| Maecliffe Excellency Ch Marwell Marquis x Lady Jellicoe I I |
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Ch Maecliffe Galleon Master  Ch Marwell Marquis x Lady Jellicoe I I |
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| Piccadilly Punch Ch Marwell Marquis x Alouetta (can) |
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| Poker Chips Ch Marwell Marquis x Lady Molley H |
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| Snuffy Jack Ch Marwell Marquis x Adeles Robinhood I I |
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| Sparkling Diamond Ch Marwell Marquis x Lady Challenge (can 1932) |
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| Toby Of Barrington Ch Marwell Marquis x Adeles Robinhood I I |
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| Marwell Shamrock Blighty Bursley x Lady Cambridge |
Admiral Togo I I (can) Marwell Shamrock x Moyer Girl |
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| Beautiful Lady (can-usa) Marwell Shamrock x Moyer Girl |
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| Betty Co Ed (can) Marwell Shamrock x Beauty Beresford |
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| Blackburn Banker Marwell Shamrock x Blackburn Queen |
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| Blackburn Belle Marwell Shamrock x Blackburn Queen |
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| Blackburn Beulah I I Marwell Shamrock x Blackburn Queen |
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| Blackburn Brian Marwell Shamrock x Blackburn Queen |
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| Blackburn Bruno Marwell Shamrock x Blackburn Queen |
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| Blackburn Budget Marwell Shamrock x Blackburn Queen |
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| Blackburn Timmins Queen Marwell Shamrock x Blackburn Queen |
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| Bon Bacchante Marwell Shamrock x Bon Joan |
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| Bon Beau Ideal Marwell Shamrock x Bon Jean |
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| Bon Boadicea Marwell Shamrock x Bon Joan |
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| Bon Bonne Bouche Marwell Shamrock x Bon Joan |
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| Bon Bulova Marwell Shamrock x Bon Joan |
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| Bon Dominion Major Marwell Shamrock x Bon Joan |
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| Bon Sessue Marwell Shamrock x Bon Joan |
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| Bon Solitaire Marwell Shamrock x Bon Joan |
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| Bonhomie Recovery Marwell Shamrock x Bonhomie Mitzi |
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| Brian Boru I I I (can-usa) Marwell Shamrock x Moyer Girl |
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| Chow Boy Marwell Shamrock x Hulme Braw Lass |
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| Colonel Mac Marwell Shamrock x Lady Sessue |
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| Drewstone New Deal Marwell Shamrock x Drewstone Up Sa Daisy |
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| Duke Of Toronto Marwell Shamrock x Blackburn Queen |
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| Glenrose Major Marwell Shamrock x Larchmount Orange Lass |
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| Hefty Painted Lady Marwell Shamrock x Painted Lady Of Ashton |
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| Hulme Viola Marwell Shamrock x Hulme Violet |
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| Ima Duke Marwell Shamrock x Lodestone Dunscar Molly |
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| Iron Duke Of Inglenook Marwell Shamrock x Lady Meg Of Inglenook |
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| Jackie Coogan Marwell Marwell Shamrock x Princess Pat I I I (can 1927) |
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| Kempston Lady Molly Marwell Shamrock x Painted Lady Of Ashton |
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| Kempston Royal Gipsy Marwell Shamrock x Painted Lady Of Ashton |
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| King Richard (can 1931) Marwell Shamrock x Lady Sessue |
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| Lady Bessborough Marwell Shamrock x Lady Meg Of Inglenook |
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| Lady Connie Of Marmadot Marwell Shamrock x Lady Meg Of Inglenook |
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| Lady Diana Of Marmadot Marwell Shamrock x Lady Meg Of Inglenook |
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| Lady Queensborough Marwell Shamrock x Lady Sessue |
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| Lady Shamrock Marwell Shamrock x Painted Lady Of Ashton |
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| Larchmount Susie Marwell Shamrock x Lady Dinah Pete |
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| Larchmount White Queen Marwell Shamrock x Lady Dinah Pete |
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| Lord Rockingham Marwell Shamrock x Princess Pat I I I (can 1927) |
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| Marmadot Buddy Marwell Shamrock x Lady Meg Of Inglenook |
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| Marmadot Duchess Marwell Shamrock x Lady Meg Of Inglenook |
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| Marmadot Duke Marwell Shamrock x Lady Meg Of Inglenook |
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| Marmadot Masterprice Marwell Shamrock x Lady Meg Of Inglenook |
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| Marmadot Prince Marwell Shamrock x Lady Meg Of Inglenook |
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| Marwell Ashlea Marwell Shamrock x Justso Kitty |
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| Marwell Betty Marwell Shamrock x Hostess Of Glen Manor |
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| Marwell Boy Marwell Shamrock x Hostess Of Glen Manor |
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| Marwell Maple Marwell Shamrock x Blackburn Queen |
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| Marwell Peggy (can) Marwell Shamrock x Hostess Of Glen Manor |
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| Marwell Spot Marwell Shamrock x Hostess Of Glen Manor |
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| Mike Sessue Marwell Shamrock x Lady Sessue |
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| Molly Shamrock Marwell Shamrock x Lady Sessue |
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| Mollys Peggy Marwell Shamrock x Moyer Girl |
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| Myrobella Marwell Shamrock x Hulme Braw Lass |
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| Nifty Lad Marwell Shamrock x Lady Dinah Pete |
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| Nifty Spot Marwell Shamrock x Lady Dinah Pete |
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| Nifty White Prince Marwell Shamrock x Lady Dinah Pete |
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| Northern Smokey Marwell Shamrock x Lodestone Dunscar Molly |
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| Patricia Shamrock Marwell Shamrock x Hulme Violet |
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| Peggy I I I (can) Marwell Shamrock x Moyer Girl |
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| Prince Charming I V (can) Marwell Shamrock x Blackburn Barbara |
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| Pulham Daniel Marwell Shamrock x Hulme Braw Lass |
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| Rayous Tippin Marwell Shamrock x Justso Kitty |
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| Rock Boy Marwell Shamrock x Hulme Braw Lass |
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| Silver Maid Marwell Shamrock x Hulme Violet |
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| Sir Rudyard Of Inglenook Marwell Shamrock x Lady Meg Of Inglenook |
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| Sir Sidney Of Marmadot Marwell Shamrock x Lady Meg Of Inglenook |
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| Sparkhill Daisy Marwell Shamrock x Lady Betty X I V (can) |
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| Sparkhill Darkie Joe Marwell Shamrock x Lady Betty X I V (can) |
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| Sparkhill Tarzan Marwell Shamrock x Lady Betty X I V (can) |
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| Squire Dan Marwell Shamrock x Justso Kitty |
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| Strathearn Molly Marwell Shamrock x Moyer Girl |
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| The Baron (can) Marwell Shamrock x Larchmount Orange Lass |
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| Tiger Shamrock Marwell Shamrock x Princess Pat I I I (can 1927) |
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| Wallys Kingston Lady Marwell Shamrock x Lady Jellicoe I I |
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| Ch Wallys Pony Girl Marwell Shamrock x Lady Jellicoe I I |
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| Wallys Rascallion Marwell Shamrock x Lady Jellicoe I I |
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| Wallys Wild Rose Marwell Shamrock x Lady Jellicoe I I |
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| Wellmar Bendigo Marwell Shamrock x Larchmount Nifty Lady |
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| White Prince I I (can) Marwell Shamrock x Moyer Girl |
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| Oshawa Laddie Boy Blighty Bursley x Lady Cambridge |
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| Pickering Lady Betty Blighty Bursley x Lady Cambridge |
Buddy I I Ch Dewhurst Dan x Pickering Lady Betty |
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| Chief Couchiching Ch Crewe So Favourite (uk-can) x Pickering Lady Betty |
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| Dewhurst Dan I I Ch Dewhurst Dan x Pickering Lady Betty |
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| Dewhurst Dan I I I Ch Dewhurst Dan x Pickering Lady Betty |
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| Patricia Of Couchiching Ch Crewe So Favourite (uk-can) x Pickering Lady Betty |
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| Peggy O' Neil I I I (can) Ch Dewhurst Dan x Pickering Lady Betty |
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| Professor Couchiching Ch Crewe So Favourite (uk-can) x Pickering Lady Betty |
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| Rex Gaiety Ch Dewhurst Dan x Pickering Lady Betty |
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| Victor (can 1930) Ch Dewhurst Dan x Pickering Lady Betty |
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| Squire Roberts Ch Crewe So Favourite (uk-can) x Lady Cambridge |
Bungo Squire Roberts x Sparkhill Daisy |
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| Mason Dusky Girl Squire Roberts x Lady Betty X I V (can) |
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| Sparkhill Beauty Squire Roberts x Lady Betty X I V (can) |
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| Sparkhill Blackeyed Susan Squire Roberts x Lady Betty X I V (can) |
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| Sparkhill King Michael Squire Roberts x Lady Betty X I V (can) |
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| Sparkhill Mike Squire Roberts x Lady Betty X I V (can) |
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| Weales Robertson Crewso Squire Roberts x Lady Betty X I V (can) |