Shamrock xx (GB)
| Year of Birth | 1836 |
| Sex | horse |
| Colour | chestnut |
| Sire | St Patrick xx (GB) |
| Dam | |
| Damsire | |
| Breeder | |
| Birthplace |
Pedigree
| Shamrock xx | St Patrick xx (GB) | Walton xx (GB) | Sir Peter Teazle xx (GB) |
Foals
| YoB | Name | Colour | Sex | Pedigree | Breeder | Birthplace |
|---|---|---|---|---|---|---|
| 1844 | Little Mistress xx (USA) | chestnut | mare | Shamrock xx (GB) - Glance xx (USA) | Col. John Crowell |