| Name | Miss Unknown (US) |
| YoB | 1882 |
| Sex | mare |
| Colour | bay |
| Sire | Sir Walkill (US), 1875 |
| Dam | Unknown (US), 1863 |
| Damsire | Harry Clay (Sayre's, Corning's) (US), 1853 |
| Breeder | Charles Stanford |
| Birthplace |
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| 1891 | Sorrel Mare (US) | chestnut | mare | Lord Russell (US), 1881 - Miss Unknown (US), 1882 | Jefferson & Watson |