Shamrock (US) ATR-1517
| Year of Birth | 1874 |
| Sex | horse |
| Colour | bay |
| Sire | Hambletonian (Rysdyk's) (US), 1849 |
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Pedigree
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Shamrock
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Foals
| YoB | Name | Colour | Sex | Pedigree | Breeder | Birthplace |
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| 1885 | Sleepless (US) | bay | mare | Shamrock (US) - Ethics (US) | Speedwell Farm |