| Name | Happy Heir (US) |
| YoB | 1883 |
| Sex | horse |
| Colour | |
| Sire | Happy Medium (US), 1863 |
| Dam | Heiress (US), 1877 |
| Damsire | Administrator (US), 1863 |
| Breeder | |
| Birthplace |
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| 1897 | Heir Queen (US) | mare | Happy Heir (US), 1883 - Queen Sprague (US), 1881 |