Billy Thornhill (US) ATR-8707
| Year of Birth | |
| Sex | horse |
| Colour | ? |
| Sire | |
| Dam | |
| Damsire | |
| Breeder | |
| Birthplace |
Pedigree
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Billy Thornhill
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Foals
| YoB | Name | Colour | Sex | Pedigree | Breeder | Birthplace |
|---|---|---|---|---|---|---|
| 1887 | Great Stakes (US) | bay | horse | Billy Thornhill (US) - Sweetstakes (US) | Z. E. Simmons |