| breed | Thoroughbred |
| color / sex / birth date | d.-bay c ., 1940 |
| breeder | USA |
| Sire line | Dark Ronald |
| Dam line | Bonny Lass |
| foaling reference | Ам. |
| Owner | USA |
|
Boswell
(GB)
Great Britain br., 1933 |
Bosworth
(GB)
d.-bay, 1926 |
Son-in-Law
(GB)
br., 1911 |
|
Serenissima
(GB)
bay, 1913 |
||
|
|
|
|
|
|
||
|
Vibration
(GB)
Great Britain bay, 1936 |
Sir Cosmo
(IRE)
br., 1926 |
The Boss
chestnut, 1910 |
|
Ayn Hali
|
||
|
Ciliata
(GB)
bay, 1919 |
Cicero
(GB)
chestnut, 1902 |
|
|
Carbide
(GB)
bay, 1905 |