Administrator (US) ATR-357
| Year of Birth | 1863 |
| Sex | horse |
| Colour | bay |
| Sire | Hambletonian (Rysdyk's) (US) |
| Dam | |
| Damsire | |
| Breeder | |
| Birthplace |
Pedigree
| Administrator | Hambletonian (Rysdyk's) (US) | Abdallah (US) | Mambrino xx (USA) |
| Amazonia (US) | |||
| Charles Kent's mare | Bellfounder (Jary's) (Norf. trotter) (GB) | ||
| One Eye xx (USA) | |||
Foals
| YoB | Name | Colour | Sex | Pedigree | Breeder | Birthplace |
|---|---|---|---|---|---|---|
| 1867 | Enchanter (US) | horse | Administrator (US) - | |||
| 1867 | Hambletonian Prince (Dubois') (US) | bay | horse | Administrator (US) - | ||
| 1870 | Violet (US) | mare | Administrator (US) - | |||
| 1870 | Lady Hamblet (US) | bay | mare | Administrator (US) - ? | E. F. Vredenburgh | |
| 1875 | Advantage (US) | bay | mare | Administrator (US) - Monogram (US) | A. M. Osgood | |
| 1875 | Advance (US) | mare | Administrator (US) - | |||
| 1876 | Commissioner (US) | horse | Administrator (US) - | |||
| 1876 | Daisy B. (US) | mare | Administrator (US) - | |||
| 1876 | Adieu (US) | mare | Administrator (US) - | |||
| 1876 | McMahon (US) | horse | Administrator (US) - | |||
| 1877 | Heiress (US) | mare | Administrator (US) - | |||
| 1878 | Black Walnut (US) | horse | Administrator (US) - | |||
| 1879 | Delilah (US) | mare | Administrator (US) - | |||
| 1879 | Balm (US) | brown | mare | Administrator (US) - Silverfoil (US) | George F. Stevens | |
| 1881 | Princess (US) | mare | Administrator (US) - Priceless (US) |