| Name | Engineer 2nd (US) |
| YoB | 1820 |
| Sex | horse |
| Colour | grey |
| Sire | Engineer xx (USA), 1802 |
| Dam | Dam of Engineer 2nd (US) |
| Damsire | Plato xx (USA) |
| Breeder | Alexander Lewis |
| Birthplace |
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| - | Dam of Milliman's Bellfounder (US) | mare | Engineer 2nd (US), 1820 - Grandam of Milliman's Bellfounder (US) | ||
| - | Dam of Simonson mare (US) | mare | Engineer 2nd (US), 1820 - ? | ||
| - | Grandam of Cassius M Clay Jr (Neave's) (US) | mare | Engineer 2nd (US), 1820 - | ||
| - | Spirit (US) | mare | Engineer 2nd (US), 1820 - American Eclipse Mare (US) | ||
| - | Suffolk Queen (US) | mare | Engineer 2nd (US), 1820 - Doctor Bower's Queen Mab (US) | ||
| - | Young Engineer (US) | horse | Engineer 2nd (US), 1820 - |