| breed | Thoroughbred |
| color / sex / birth date | bay f ., 1977 |
| breeder | USA |
| Sire line | Nasrullah |
| Dam line | Toxophilite mare |
| foaling reference | Ам. |
| Owner | USA |
|
Secretariat
(USA)
USA chestnut, 1970 |
Bold Ruler
(USA)
br., 1954 |
Nasrullah
(GB)
bay, 1940 |
|
Miss Disco
(USA)
bay, 1944 |
||
|
Somethingroyal
(USA)
bay, 1952 |
Princequillo
(IRE)
bay, 1940 |
|
|
Imperatrice
(USA)
bay, 1938 |
||
|
Comely Nell
(USA)
USA bay, 1962 |
Commodore M.
(USA)
bay, 1951 |
Bull Lea
(USA)
br., 1935 |
|
Early Autumn
|
||
|
Nellie L.
(USA)
bay, 1940 |
Blenheim II
(GB)
br., 1927 |
|
|
Nellie Flag
(USA)
chestnut, 1932 |