| Generation 1 | Generation 2 | Generation 3 | Generation 4 | Generation 5 | Generation 6 | Generation 7 |
Anibal De Tochas Bulls  
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Kamikaze De Otero Bulls  |
Exterminator Bazooka Joe |
Am CH Sleepy Eyed Butch   |
Am CH Mīlouīs Shiloh |
Ch Shack Kum Pat-a-bull's Hercules |
Ch Shacklefords Duke |
Shacklefords Donna Jean  |
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| Am CH Mīlouīs Georgy Girl |
Ch Shacklefords Duke |
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| Muggsie Susan |
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| County Boyīs Taffy Delite |
Shacklefords Reggie |
Shack-a-jewell Volare |
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| Smasher First Lady Sugar |
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| Shacklefords Abigail Adams |
USA Ch Shacklefords Sugar And Joe  |
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| Little Bit Ii |
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| Jc's Sweet Cherry Pie |
Jc's Red Bear Of So Cal  |
Ch Jc's Jon-boy Collins  |
Am CH Charvelīs Red Butch |
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| Frosty's Bethsheeba |
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| Potthouse Pimm's Cup |
USA Ch Perro De Presa Paco  |
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| Gaylord's Coke Machine |
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| Jc's Patti-o |
Ch Jc's Jon-boy Collins |
Am CH Charvelīs Red Butch |
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| Frosty's Bethsheeba |
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| Jc's Columbine English Lace |
Jc's Willy S Loretta Jet |
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| Jc's Columbine Country Clover |
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| Empanada Millie De Otero Bulls |
Be My Bistec De Otero Bulls |
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| Sweet Calamity Girl |
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| Jerga Busa De Otero Bulls |
Arg Ch Buxon Of Courage Bulls |
Garlise Royal Flash |
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| Pascuala |
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| Salute De Otero Bulls |
Bronorn Blaze Away |
Ashcourt Blaze At Bronorn  |
Ch Aldridge Avanti  |
Eng Ch Aldridge Advent Gold  |
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| Aldridge Ardent Arlene |
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| Ashcourt Averil |
Ringablok Super Ted |
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| Tuffnuts Blizzard |
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| Bullzaye Peggy Pride At Bronorn |
Morny Cash At Bullzaye |
Bullzaye Sandy Macnab  |
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| Dalbaro Flora |
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| Bullzaye Kate Carney |
Bullzaye Sandy Macnab |
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| Bullzaye Clara Butt |
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| Rocoīs Lady Be Noble |
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| Perla De Olazabal |
Ulises De Olazabal |
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| Limao De Olazabal |
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