| Name | Bay Middleton (US) |
| YoB | 1867 |
| Sex | horse |
| Colour | |
| Sire | Middletown (US), 1860 |
| Dam | |
| Damsire | |
| Breeder | |
| Birthplace |
| Bay Middleton (US), 1867 | Middletown (US), 1860 | Hambletonian (Rysdyk's) (US), 1849 | Abdallah (US), 1823 |
| Charles Kent's mare, 1833 | |||
| Dam of Middletown (US) | Young Vivian (US) | ||
| Grandam of Middletown (US) | |||
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| - | Mary (US) | mare | Bay Middleton (US), 1867 - Dam of Mary (US) | ||
| 1880 | Maggie Middleton (US) | bay | mare | Bay Middleton (US), 1867 - ? | D. H. & J. S. Spencer |
| 1881 | Middletonian (US) | bay | mare | Bay Middleton (US), 1867 - Promptness (US) | Abraham L. Smith |
| 1881 | Minnie Hoag (US) | bay | mare | Bay Middleton (US), 1867 - Lucy (US) | Thomas E. Hoag |