| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| St. Amant | bay | c | 1901 | St. Frusquin | Thoroughbred | |||
| St. Angela | bay | f | 1865 | King Tom | Thoroughbred | Great Britain | ||
| St. Angelo | bay | c | 1889 | Galopin | Thoroughbred | Great Britain | ||
| St. Astra | bay | f | 1904 | Ladas | St. Celestra | Thoroughbred | France | |
| St. Aubyn | bay | c | 1888 | Thoroughbred | Great Britain | |||
| St. Banaventure | bay | c | 1966 | Amerigo | Pinny Gray | Thoroughbred | USA | |
| St. Becan | br. | c | 1922 | Thoroughbred | Great Britain | |||
| St. Bees | br. | f | 1888 | St. Simon | Beatrice | Thoroughbred | Great Britain | |
| St. Begoe | bay | f | 1910 | St. Frusquin | Alicia | Thoroughbred | Great Britain | |
| St. Bernard | bay | f | 1959 | Hill Prince | Ambulance | Thoroughbred | USA |