| Joe O'Brien Jr Sorrel 1943 0004858 | Joe O'Brien Chestnut 1935 0000487 | Duke Unknown Unknown U0171093 | Unknown Sire Unknown Unknown 0444444 | Unknown Sire Unknown Unknown 0444444 |
| Unknown Mare Unknown Unknown 0555555 | ||||
| Unknown Mare Unknown Unknown 0555555 | Unknown Sire Unknown Unknown 0444444 | |||
| Unknown Mare Unknown Unknown 0555555 | ||||
| Timbo Unknown Unknown U0080725 | Sykes Rondo Unknown Unknown U0069118 | McCoys Billy Unknown Unknown U0372323 | ||
| Unknown Mare Unknown Unknown 0555555 | ||||
| Unknown Mare Unknown Unknown 0555555 | Unknown Sire Unknown Unknown 0444444 | |||
| Unknown Mare Unknown Unknown 0555555 | ||||
| Mamie O'Brien Bay 1925 0000493 | Unknown Sire | Unknown Sire | Unknown Sire | |
| Unknown Mare | ||||
| Unknown Mare | Unknown Sire | |||
| Unknown Mare | ||||
| Unknown Mare | Unknown Sire | Unknown Sire | ||
| Unknown Mare | ||||
| Unknown Mare | Unknown Sire | |||
| Unknown Mare |