| Name | Son of Post Boy (US) |
| YoB | |
| Sex | horse |
| Colour | |
| Sire | Post Boy (US) |
| Dam | ? |
| Damsire | ? |
| Breeder | |
| Birthplace |
| Son of Post Boy (US) | Post Boy (US) | Young Andrew Jackson (US) | Long Island Black Hawk (US), 1837 |
| ? | |||
| Dam of Post Boy (US) | Old Post Boy xx (USA) | ||
| ? | |||
| ? | ? | ? | |
| ? | |||
| ? | ? | ||
| ? |
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| - | Susan (US) | mare | Son of Post Boy (US) - ? |