| breed | Thoroughbred |
| color / sex / birth date | bay c ., 1983 |
| breeder | USA |
| Sire line | Nearco |
| Dam line | Polly Agnes |
| foaling reference | Ам |
| Owner | USA |
|
Halo
(USA)
USA d.-bay, 1969 |
Hail to Reason
(USA)
br., 1958 |
Turn-To
(IRE)
bay, 1951 |
|
Nothirdchance
(USA)
bay, 1948 |
||
|
Cosmah
(USA)
bay, 1953 |
Cosmic Bomb
(USA)
d.-bay, 1944 |
|
|
Almahmoud
(USA)
chestnut, 1947 |
||
|
Northern Sea
(USA)
USA bay, 1974 |
Northern Dancer
(CAN)
bay, 1961 |
Nearctic
(CAN)
d.-bay, 1954 |
|
Natalma
(USA)
bay, 1957 |
||
|
Sea Saga
(USA)
chestnut, 1968 |
Sea-Bird
(FR)
chestnut, 1962 |
|
|
Shama
(USA)
d.-bay, 1961 |