| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Will's Way | bay | c | 1993 | Easy Goer | Willamae | Thoroughbred | USA | |
| Willa | f | Pergolese | Thoroughbred | |||||
| Willa Joe | bay | f | 1990 | El Gran Senor | Willamae | Thoroughbred | Ireland | |
| Willam's Volos | chestnut | c | 2021 | 643099200011832 | 0678-4 Aldonin | 5437-7 Uelta | Thoroughbred | Mr Kucherov N.I. |
| Willamae | bay | f | 1980 | Tentam | Raclette | Thoroughbred | USA | |
| Willamaze | d.-bay | f | 1999 | Broad Brush | Sweet Willa | Thoroughbred | USA | |
| Willathewest | bay | f | 2005 | Gone West | Willa Joe | Thoroughbred | USA | |
| Willesden | d.-bay | c | 1878 | Thoroughbred | Great Britain | |||
| 1010-5 William Creek | d.-bay | c | 2001 | William Lawrence | Whitney | Thoroughbred | Czech Republik | |
| William Lawrence | d.-bay | c | 1986 | Fappiano | Mesabi | Thoroughbred | USA |