| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| St. Honorat | chestnut | c | 1882 | Hermit | Thoroughbred | Great Britain | ||
| St. James | bay | c | 1921 | Ambassador IV | Bobolink | Thoroughbred | USA | |
| St. Jovite | c | 1989 | Pleasant Colony | Northern Sunset | Thoroughbred | USA | ||
| St. Just | chestnut | c | 1907 | St. Frusquin | Justitia | Thoroughbred | ||
| St. Juste II | bay | c | 1907 | Thoroughbred | France | |||
| St. Lawrence | bay | c | 1815 | Thoroughbred | Great Britain | |||
| St. Louis | bay | c | 2013 | 0711-4 Salgir | 1010-3 Senta | Thoroughbred | Mr. Smirnov I. | |
| St. Lucia | f | Nassau | Thoroughbred | |||||
| St. Lucre | bay | f | 1901 | St. Serf | Fairy Gold | Thoroughbred | Great Britain | |
| St. Maclou | c | 1898 | St. Simon | Mimi | Thoroughbred | Great Britain |