| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Y.Beningb.-mare | f | Thoroughbred | Great Britain | |||||
| Y.Marske-mare | f | 1794 | Thoroughbred | Great Britain | ||||
| Y.Marske-mare | f | 1795 | Thoroughbred | Great Britain | ||||
| Y.Sorcerer | bay | c | 1808 | Thoroughbred | Great Britain | |||
| Y.Sorcerer-mare | bay | f | 1815 | Paynator-mare | Thoroughbred | Great Britain | ||
| Y.Sorcerer-mare | br. | f | 1817 | Alexander-mare | Thoroughbred | Great Britain | ||
| Y.Sorcerer-mare | bay | f | 1817 | Beningbr.-mare | Thoroughbred | Great Britain | ||
| 1964-4 Ya i Ti | d.-bay | f | 2003 | You and I | Illustrious Home | Thoroughbred | USA | |
| Ya Lateefah | d.-bay | f | Muhtafal | My Violetta | Thoroughbred | USA | ||
| 3698-1 Ya Zaman | bay | c | 1977 | Gallant Man | Irish Exchange | Thoroughbred | USA |